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GIMP 2 for Photographers

Jon Allen writes "A glance through any photography magazine will confirm that Adobe Photoshop is the accepted standard image editing software, offering almost unparalleled power and control over your images. However, costing more than many DSLR cameras, for non-professionals it can be a very hard purchase to justify (and of course for Linux users this is a moot point, as Photoshop is not available for their platform). Luckily, the free software community has provided us with an alternative. The GIMP, or Gnu Image Manipulation Program, offers a huge amount of the power of Photoshop but is available at no cost. Additionally GIMP is cross-platform, available for Windows, Mac, Linux, and Unix." Read below for the rest of Jon's review. GIMP 2 for Photographers author Klaus Goelker pages 185 publisher Rocky Nook / O'Reilly rating 9/10 reviewer Jon Allen ISBN 978-1-933952-03-1 summary A great book for anyone with more than a passing interest in improving their photos The one downside to using GIMP is that most magazines and photography books use Photoshop in their articles and tutorials, so if you do choose GIMP there's a bit more of a learning curve. Now once you're used to GIMP you'll find that many of Photoshop's features have equivalents, albeit with a different user interface, but getting that initial level of experience and familiarity with the software can be rather difficult. The GIMP does come with a manual, but it is really more of a reference guide and while very comprehensive it is not particularly friendly for new users. GIMP 2 for Photographers aims to rectify this.

Written clearly from a photographer's point of view (the author is a photographer who also teaches image editing), this book takes a task-oriented approach, looking at the types of editing operations that a photographer would require and then showing how to perform each task in the GIMP.

Rather helpfully, the GIMP software (for Windows, Mac, and Linux) is included on the book's accompanying CD. This means that you can follow each tutorial using the exact same version of software as the author, which really helps to build confidence that you're doing everything right.

I already have GIMP installed on OS X, so to test out the instructions in the book I performed an installation from the CD on a clean Microsoft Windows XP machine.

The exact filenames of the installation packages on the CD differ slightly from those in the accompanying README file, but the instructions in the book do list the correct files and after following this procedure the installation went without a hitch. The setup files do not ask any overly 'techie' questions, so it literally took less than 5 minutes to set up a fully working system.

As well as the GIMP application, the CD also includes all of the sample images used in the book, and for each editing tutorial the "final" image is provided so you can check your own work against the expected result.

Even more usefully, the CD contains an electronic copy of the complete book as a PDF file, so you can keep it on your laptop as a reference guide, invaluable when editing images on location (or on holiday).

I'd have to say that this is without a doubt the most useful CD I've ever received with a book. Providing the applications and example files is good, giving readers instant gratification without needing to deal with downloads and websites (which may well have changed after the book went to press). But including the complete book on the CD as well is nothing short of a masterstroke, and something I'd love to see other publishers adopt.

As for the book itself, the author takes us through basic GIMP operations — opening and saving files, cropping, resizing images, and printing. Once these basics are out of the way, the book moves on to a series of examples based on "real-life" image editing scenarios.

These examples are very well chosen, both in the fact that the vast majority of the techniques shown are genuinely useful, but also in the way that they are ordered. Each example introduces a new feature of the software, building up your knowledge as you work through the book. By the end you can expect to be skilled not only in "standard" editing — adjusting color balance, fixing red-eye, removing dust spots, and so on — but also in compositing, perspective correction, lighting and shadow effects, and building panoramic images.

Between the examples there is a good amount of more "reference" type material, with detailed descriptions of the various menus, tool bars, and dialogs you will encounter while using the software. Combined with lots of well-labelled screenshots this strikes a very good balance, ensuring that even after going through all the tutorials you'll still get value from the book as something to refer back to.

Overall the quality of the writing and general production standard is very high indeed. There are some points where it is noticeable that the book was originally published in German, but this never becomes a stumbling block to the reader's understanding. Most importantly though, the author employs the "show, don't tell" philosophy throughout which is key to successful teaching.

In conclusion, I would have no hesitation in recommending GIMP 2 for Photographers to anyone with more than a passing interest in improving their photos. And even if you already use image editing software, the book is well worth a read — I have been using GIMP for several years and still learned a great deal. The accompanying CD is the icing on the cake, making GIMP 2 for Photographers a simply essential purchase.

You can purchase GIMP 2 for Photographers from amazon.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

33 of 471 comments (clear)

  1. In a lot of ways, Gimp is more intuitive than PS by iamacat · · Score: 3, Informative

    You just have to look at it from programmer's point of view. For example, there is no separate commands to draw geometric shapes. Instead you define a selection and then stroke or fill it. The upshot is that it's much easier to, for example, draw an intersection of two shapes. Default settings in photoshop also leave much to be desired. For example, only several undo levels are enabled by default. In Gimp you can review a long undo history and snap your project back to any point.

    I am sure PS is a great tool for professional artists, but it's horrible for programmers who want to do a little icon drawing. On the other hand, price of Photoshop and lack of Pen tool in Photoshop Elements make it unsuitable for most hobbyists and shareware authors.

  2. Picasa by Hoi+Polloi · · Score: 4, Informative

    Picasa is good enough for my photo needs (i.e. straightening, lightening) and it is free too.

    --
    It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
    1. Re:Picasa by Entropius · · Score: 4, Informative

      Picasa is excellent, but:

      1) It only has one "sharpen" button with no parameters. For an operation that's as touchy as sharpening, you need more control.
      2) The highlights/shadows/fill light sliders aren't as flexible or as easy to use as the Gimp's curves tool for adjusting contrast.

      Add a proper unsharp mask tool and a tone curve, and Picasa would be able to do 90% of post-process jobs. Now it can only do 10%, simply because curves is so useful.

  3. No 16bit support by Eugenia+Loli · · Score: 5, Informative

    No 16bit support on Gimp, and so it's NOT a good solution for prosumer or pro photographers. And Cinepaint has forked a long time ago and so many other features are missing from it, so don't even mention it as an alternative. 16bit support on Gimp was first promised in 2002, but it's still not here...

  4. Adobe Lightroom by darthv506 · · Score: 4, Informative

    I would imagine that a large number of photographers have switched over to Adobe Lightroom. It's tailor made for photo work (workflow, organization and processing). It's a very nice piece of software and a lot cheaper than PS CS3!

    1. Re:Adobe Lightroom by photomonkey · · Score: 4, Informative

      IAAPP (I am a professional photographer)

      Lightroom and Aperture are both eye candy and nothing more. They do not replace the functionality of Pshop (including clone-stamping out dust and making color-channel level edits). Additionally, their support for IPTC/EXIF metadata is shaky at best. If you use a server or network storage device to store your image archive, it's kind of fun to watch Lightroom and Aperture shit the bed trying to figure out how to deal with it.

      It's almost like a lot of the developers have realized that everyone and his brother have bought digital cameras, and that they can probably sell yet another expensive 'make my photos stop sucking' software to people who already can't use what they have.

      I've used the Gimp on Windoze and Linux, and it's about where Pshop was at version 4 or 5. All software can be improved upon, and Pshop is no exception. But there is a reason that they have driven everyone else under (or nearly under). It's a damn fine couple of million lines of code.

      In my expert opinion, the best combination for browser/meta editor and editing app has to be Photo Mechanic and Photoshop.

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  5. If it's on the books.slashdot.org subdomain by tepples · · Score: 3, Informative

    After reading and rereading the article, I think I have come to the conclusion that this is a review of a book I got that impression just by looking at the Slashdot main page, which stated:

    Book Reviews: GIMP 2 for Photographers
    Posted by samzenpus on 2007-10-03 15:22
    from the crop-better dept.
    You might have missed it when the link to "Book Reviews" was drawn in a color similar to the green background of headline bars.
  6. Re:In a lot of ways, Gimp is more intuitive than P by afd8856 · · Score: 3, Informative

    1. How do you change the shape of your selection outlines, or make small adjustments to it? In Photoshop, as they're defined by vector shapes, you can do this.
    2. Photoshop has the history palette (and even history branching, if I'm not mistaking, in the later versions)

    --
    I'll do the stupid thing first and then you shy people follow...
  7. Strawman by KenSeymour · · Score: 4, Informative

    Comparing GIMP to the full version of Photoshop is a straw man argument. Compare it instead to Photoshop Elements. Elements is about $100, not about $700.

    I have used both Elements and GIMP and find Elements much more intuitive. This is even though
    I used GIMP first. Elements also supports the RAW mode for my Nikon D70.

    I now only use GIMP when I don't have access to my home machine, where the one licensed copy I have is installed.

    Elements also allows you to organize your photos into categories without having to create a directory structure. It has built in partial and full backup functions.

    Of course, YMMV.

    --
    "We can't solve problems by using the same kind of thinking we used when we created them." -- Albert Einstein
  8. Re:[Ff]ree vs Piracy by MightyYar · · Score: 2, Informative

    They laughed at me in CompUSA when I said that I couldn't afford Photoshop: "No one PAYS for Photoshop!"

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    W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
  9. Raw mode by GroundBounce · · Score: 4, Informative

    Actually GIMP's support for raw files has improved dramatically in the last few years. Install the UFRaw plugin, which most Linux distros package up and which supports the D70 as well as many others.

  10. Try GIMPShop by GroundBounce · · Score: 4, Informative

    You might be intrested in GIMPShop. I've never used it, but it is a modified version of GIMP designed to have an interface that is closer to that of Photoshop. There is some Photoshop fuctionality that is missing in GIMP, and this does change that, but it might help long-term Photoshop users become comfortable with GIMP faster, especially if you're in a situation where you need to use both. Again, I've never used it, so I can't speak as to how much it helps.

  11. Paint.net beats GIMP with a stick by Nerdposeur · · Score: 4, Informative

    I do not understand the fascination with GIMP. I have used Photoshop for basic editing for years, and found GIMP to be a nightmare when I tried it.

    Paint.net, on the other hand, is easy to use, works in basically the same way as Photoshop (many of the shortcut commands are even the same), and is free. I now use it almost every day at work for basic web stuff - resizing, erasing undesirable elements with the clone brush, converting formats, etc.

    Maybe I misunderstand GIMP (maybe because I'm running XP), but you know Photoshop and you're looking for a free version, Paint.net will be a much easier transition.

  12. Re:Tangentially, I seem to recall... by elrous0 · · Score: 2, Informative

    Look at Pixel: same interface, most of the power, a fraction of the price.

    --
    SJW: Someone who has run out of real oppression, and has to fake it.
  13. Re:Resizing images by GroundBounce · · Score: 2, Informative

    For resizing images, GIMP defaults to using Linear interpolation, but you can change this to use cubic splines, which often gives better results. GIMP does not inherently support more complex interpolations such as Lanczos, but these generally only make a significant difference when upsampling (scaling up).

    In any case, interpolating will blur the image slightly, even when scaling down, so most of the time applying a small to moderate amount of sharpening or unsharp-mask makes the images look much better.

  14. Too little, too late by TheeBlueRoom · · Score: 2, Informative

    The world of pro/semi photography has moved on to tools like Aperture/Lightroom. When you are shooting hundreds images working with them in PS or Gimp is far too time/labor intensive. With the next generation for tools I can efficiently deal with hundreds/thousands of image to grade and quick edit images then if required do fine editing with PS/Gimp.

    --
    I wish I was clever!
  15. Re:What I Want to do with GIMP by untermensch · · Score: 3, Informative

    This is a new feature in the soon to be released Gimp 2.4, check the release notes at:
    http://next.gimp.org/release-notes/gimp-2.4.html

  16. CMYK is a deal breaker. by SatanicPuppy · · Score: 2, Informative

    For a professional, you have to have high quality CMYK support. Period. Doesn't matter how good the other features are, if you're stuck with RGB, you're never going to be accepted in the world of the printed page.

    --
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  17. Re:In a lot of ways, Gimp is more intuitive than P by Eponymous+Bastard · · Score: 3, Informative

    I'll give you two features that alone make Photoshop easier to use:
    - Unified move/scale/rotate/perspective/etc tool with transparency. Want to paste a person on top of a building? A flower on a hat? Paste your logo on a billboard on a photograph? You move, scale, rotate and do everything else in one shot until it looks right. Scale a bit, move, scale, move, rotate, rescale, change transparency, doesn't match quite right, rescale again... ok. On the Gimp, you have to do scaling and rotation separately, which is harder to get right and you lose quality, especially if you do it repeatedly. The best I found was to use the measuring tool on an axis on both source and destination, and then calculate scale and rotation and enter it on the two dialogs, then move. Even the transparent move wasn't implemented until recently, and you have to make sure to disable visibility of the layer before you move. (Or at least you did a month ago)
    - Adjustment layers: Nondestructive editing is good. Adjust the colors. Adjust the colors of another layer. Doesn't look quite right? Readjust the colors of the first one. In the gimp I end up making copies before a color adjustment so that I can redo it if I need to.

    Notice I'm not talking about high powered features, or 256 bit color in YMCA palette or whatever. I'm talking about every day things. Even the layer grouping in Photoshop is very useful even if you don't put in the layer blending effects, making it easy to implement.

    There are a couple features from the Gimp I miss when I'm using Photoshop, but the end balance is in photoshop's favor.

    For simple editing the Gimp is good. If you don't have Photoshop, the Gimp is good. One-on-one comparison ... give it a couple years.

  18. Re:New version of GIMP? by KDR_11k · · Score: 2, Informative

    I know that feeling, I hate that it uses several windows that don't keep a useful z order so when I switch to another application and back I have to pull all the windows back up and the image has a tendency to obscure the tool windows. There's more friction I get but I think that's mostly because I'm more used to Photoshop. For some reason it doesn't seem like I can draw on the alpha channel or it couldn't export to TGA or something, I know I had some trouble with handling alpha for my textures though.

    --
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  19. Re:New version of GIMP? by MobileTatsu-NJG · · Score: 4, Informative

    "...which costs an arm, leg, and both testicles..."make money. (I'm not implying that you couldn't with the GIMP, but arguably, you could go farther down that route with PS.) If anybody's curious, the educational version is $300. That's hardly the cost of an arm, leg, and both testicles, especially for a group of people already invested in hardware.

    "...and doesn't run on anything but the crappiest of platforms."

    Right, because ameteur photographers are all running Linux. Photoshop runs on Windows and Mac, plus it's possible to get it running in WINE. This is such a non-point it's not even funny.

    The GIMP is fine for amateurs. Fine, we get that. It's still not Photoshop. If those amateurs want to one day be professionals, that's going to become an important point.

    --

    "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

  20. Re:Deep Color by swillden · · Score: 4, Informative

    GIMP is getting support for deep colors and multiple color spaces as part of the new graphics engine, GEGL. GEGL was supposed to be part of GIMP 2.4, but it wasn't quite ready so it's been pushed back to 2.6. I don't imagine we'll see GIMP with GEGL before 2009, but it is coming. The new engine will also make lots of things much easier to implement, and much faster and more RAM-efficient, in spite of the hugely-expanded dynamic range.

    Of course, you can't edit your photos with GIMP 2.6 right now, so if you need deep colors, at present you're pretty much stuck with Photoshop. You could also try Krita, but it tends to crash a lot.

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  21. Re:THAT interface by Synic · · Score: 2, Informative

    GimpShop is the answer.

    http://gimpshop.blogspot.com/2005/10/what-is-gimpshop.html

    It brings a more Photoshop-like interface to the Gimp.

  22. Re:New version of GIMP? by Edie+O'Teditor · · Score: 0, Informative

    But there is the phrase "non-professionals", which is a damn close match.

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    If X is the new Y, and Y is "X is the new Y", solve for X.
  23. Re:GIMPie by Ant+P. · · Score: 2, Informative

    Try the 2.4 RC; they finally added a "save defaults" button to that window. (It's been driving me insane as well)

  24. Re:New version of GIMP? by Darth+Hubris · · Score: 2, Informative

    You want Gimpshop:
    http://gimpshopdotnet.blogspot.com/

    It's the Gimp with the menu layout of Photoshop. It also has the user interface in one window. That's the unique but strange way that standard Gimp works, floating toolbars as separate programs. Give Gimpshop a try.

    --
    The party's over ... the drink ... and the luck ... ran out
  25. Re:What about GIMP for cartoonists? by 8-bitDesigner · · Score: 2, Informative

    As a professional artist / amateur illustrator, and working around some fantastically talented people, I gotta say that any raster program you're working with isn't going to cut it for really awesome quality illustrations/webcomics.

    What I've found works best is to take the pencil sketch and then either preliminarily ink it, or scan it in to Illustrator (though I'm sure Inkscape would work well enough too. If you've got a Wacom or similar tablet, you can do inking in Illustrator and use the pressure sensitivity of the pen to get some very natural lines. After that, take the "inked" illustration into Photoshop and paint under it for a good clean illustration.

    Outside of that, you could ink/trace over vellum, scan in the inked sheet, and use Illustrator's "live trace" (prolly in Inkscape too) as another way to get a good vector version of the illustration.

    And hell, failing all that, you can always just use a Wacom tablet + brush tool and draw directly in Photoshop/GIMP over the scanned image.

    I guess the moral of the story is that taking pencil art into a final piece is just painful, and you should just use something, anything to get a clean trace to colour/paint/etc. off of.

  26. Re:New version of GIMP? by LunarCrisis · · Score: 2, Informative

    What I want is how the *Mac* version of Photoshop works, with floating toolbars, and documents don't need to exist atop a gray background window that cover up the desktop. But, perhaps this is impossible under Windows and maybe Linux as well, which are task-based (whereas the Mac interface is application-based). I don't know about GIMP 2.2, but I know in the release candidates for 2.4 you can set the toolbars and docks as utility windows in the preferences and they act like that. A big reason it's off by default is probably that some window managers supposedly have horrible behaviour with utility windows.
    --
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  27. JPEG preview, saving selections, and undo history by tepples · · Score: 2, Informative

    Preview JPEG quality when adjusting the quality before a save ("save for web" does this too). GIMP 2.2.17 has a JPEG preview checkbox.

    Ability to save and load selections. To save a selection in GIMP 2.2.17, create a new layer, then Edit > Fill. To load the selection, right-click the layer in the layer stack then choose Alpha to Selection.

    Actions / history (I actually had to open The Gimp and look because I wasn't 100% sure about this one ... I was right, I can't find a "history" dialogue or equivalent). It's nice to be able to jump to a specific point in the history without having to ctrl+z a bunch of times. In GIMP 2.2.17, try File > Dialogs > Undo History.
  28. Re:How come no FREE version of this BOOK ?? by capaslash · · Score: 2, Informative

    This fellow: http://gimp-savvy.com/BOOK/ has an excellent free book.

  29. Re:What makes Photoshop "better" ? by MobileTatsu-NJG · · Score: 5, Informative
    I'll do my best to answer your question. I'd like to be up-front, though, and tell you that I don't have enough knowledge to give you a vs. comparison of the two. So what I'll do is list off a bunch of the useful features in PS, specifically those I didn't find when I used GIMP about a year ago. Hopefully somebody else can chime in and say "GIMP does this too". (I would VERY MUCH like to be more educated about the GIMP. Since it's free, there's no reason for me to prefer one to the exclusion of the other.)
    • Patch Tool: The Patch tool is a bit like the clone tool only it takes a stab at adjusting the colors of the new pattern to match what you're pasting it into. In simpler terms it's a clone tool with auto color-correction that makes it much much easier to remove blemishes and create seamless images.
    • Layer Groups and Nested Layers: Photoshop has something called 'Layer Groups' which are a little bit like using Folders. This makes organizing an image with tons of layers very easy. Through this organization, you can use one transparency mode for the entire group. A lot of the tricks I do in Photoshop are centered around organization of the layers. It's difficult to explain without showing you in person, but Layer Groups alone were worth the upgrade many years ago.
    • Adjustment Layers: Photoshop has non-destructive layers that do tasks like Levels Adjustment, Invert, Hue/Saturation, Brightness & Contrast, etc. Each of these layers has a B&W Alpha mask you can paint on straight away to limit the area of the image they work on. After you've set them, you can go back and change their values.
    • 16-bit Support: I probably don't need to say too much here. Photoshop works in a 16-bit space. Although, just between you and me, I've found this less interestin since I have adjustment layers. I don't have to do a lot of re-fiddling with images in a destructive sense. But that's a personal preference thing.
    • Smart Objects: Photoshop will take whatever layers you have selected and create a 'Smart Object'. Basically it collapses those images down into a single layer. However, the original layers are still available. They're stored elsewhere. You can move, rotate, scale, warp, and do all kinds of stuff to a Smart Object without it being destructive. It's sort of like... well, imagine you saved a Photoshop file somewhere else. It has a bunch of layers etc. Then imagine opening a new PS Image and referencing that first one. It's just loading it in as it needs it just like an HTML page references a JPG file. If somebody changes that JPG file and reloads the HTML file, the image in the page changes, right? Well, Smart Objects are sort of like that. The key difference is that they're not external files, they're kept within the .PSD file. They show up as one layer, but when you double click them, they show up as a new document with all the layers in tact.

      If you edit that document and save it, you'll see those changes propogated through every instance you used it in your main file. This means you can clone that image around as many times as you like, then change it later. I don't know if I'm explaining this very clearly or not. The simple version is that it's another non-destructive mode Photoshop has. It's relatively new to PS, but man, I cannot live without it.
    • Lens Blur: Making an 'out of focus' image isn't as simple as just applying a blur to it. Photoshop has a lens-blur filter that takes into account the shape of the iris, bloom of specular highlights, and so on. It looks pretty darned convincing. (I can easily picture photographers loving this.)
    • Text and Shape Layers: I'd be a bit surprised if the GIMP didn't have this, but I do not recall seeing it. Photoshop has vector based layers that are non-destructive. You can put in text or create shapes (stars, etc) or whate
    --

    "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

  30. Re:What makes Photoshop "better" ? by falconwolf · · Score: 2, Informative

    Wacom support, I don't know but as far as photography is concerned I don't think there is much use for one of those.

    For many photographers using a tablet is much easier and natural than using a mouse. And like a trackball, which also have the above advantages, it offers more precise control.

    Some pictures from me: http://www.flickr.com/photos/gomox/ (all processed in Gimp)

    Some nice shots.

    Falcon
  31. Re:16-Bit is the most important by Anonymous Coward · · Score: 1, Informative

    16-bit is also important in the sciences, particularly microscopy. Many would happily abandon PS for something a little less frou-frou.