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GIMP Resynth vs. Photoshop Content Aware

aylons writes "Just after Adobe released videos showing off the content-aware feature of Photoshop CS5, the GIMP community answered by showing the resynthesizer plugin, which has been available for some time and can do a similar job. However, are they really comparable? (In original Portuguese, but really, the images are pretty much self-explaining.) Compare them side by side removing the same objects from different kinds of images. Results do vary, but the most interesting part may be seeing the different results and trying to understand the logic of each algorithm."

40 of 269 comments (clear)

  1. Even so... by Bourdain · · Score: 3, Insightful

    ...Why not have some test samples for in a more practical situation?

    All of the samples on the site clearly can't "fool" anyone

    1. Re:Even so... by thetoadwarrior · · Score: 2, Informative

      True though Gimp did better, imo, on the first one. The rest were pretty awful for both.

    2. Re:Even so... by camg188 · · Score: 4, Informative

      But the review was from a pro-Linux site, so fairness isn't something I should have expected.

      Why do you think it was a pro-Linux site? Just because one of the sample pictures had toy penguins in it?
      I looked at the first 5 pages of the site and it was mostly articles about Windows OS and Windows graphics applications with a few stories about Apple stuff and Twitter. Not a single article about Linux.

    3. Re:Even so... by Bugamn · · Score: 3, Funny

      Do you mean, a situation like this: http://pictures.todaysbigthing.com/2010/04/16 ?

  2. I'm sure... by AcquaCow · · Score: 4, Insightful

    I saw that site a few weeks ago when folks were going gaga over PS's "new" feature (GIMP Resynth has been around for a few years now)...

    I'm sure Adobe has seen it, I'm sure Adobe took the time to try and make theirs better.

    The question is the Adobe implementation worth the cost of PS, or is the GIMP plugin "Good enough"

    That really comes down to the consumer though. I think it is "Good enough" for my needs...I can easily touch-up anything it does that I disagree with.

      -- Dave

    --

    up 12 days, 22:30, 2 users, load averages: 993.20, 994.21, 994.56
    *makes note to limit user processes...
    1. Re:I'm sure... by Anonymous Coward · · Score: 5, Interesting

      Wait till you hear from pseudo-professionals who would trash GIMP at any given opportunity. Clearly, GIMP was ahead of PS on this so called revolutionary concept, but nobody made a big fuss about it. And then hell broke loose when PS announced it - the earlier thread on it was full of multiple orgasms by the same 'professionals'.

    2. Re:I'm sure... by zwei2stein · · Score: 3, Insightful

      For consumer, for all practical purporses Gimp plugin does not exist and PS wins by having feature that Gimp does not.

      Why?

      It is plugin. As such, you have to know it exists in order to get it. Even worse, you might not even know what you are looking for if you actually look for that function. You can not just discover it while "playing with filters" and your best shot is asking on some forums ("UTFG" being mostl likely reply) if you do not just use clone tool by hand (something a lot more intuitive and going to provide much better results anyway).

      --
      -- Technology for the sake of technology is as pathetic as eschewing technology because it's technology.
    3. Re:I'm sure... by biryokumaru · · Score: 2, Interesting

      It is plugin. As such, you have to know it exists in order to get it.

      I even know it exists, what it's called, where it's website is, and I still have no idea how to download or install it. I've been using Arch Linux for several years, I can build packages, I can do ./configure or ./autogen.sh installs, I'm not retarded. I admit I haven't done much looking into it, but I have no idea how the plugin system works on Gimp, and it certainly isn't intuitive. I would say the barrier to entry for this functionality is even higher than you suggest.

      --
      When you're afraid to download music illegally in your own home, then the terrorists have won!
    4. Re:I'm sure... by jedidiah · · Score: 4, Informative

      > I even know it exists, what it's called, where it's website is, and I still have no idea how to download or install it.

      I use Ubuntu. There was a package for it. All I had to do was run apt-get.

      This is probably just a "script" and can be dropped into the appropriate place if you don't have a proper package.

      Plenty of PS stuff exists as plugins. Does that mean they don't exist either?

      --
      A Pirate and a Puritan look the same on a balance sheet.
    5. Re:I'm sure... by Rogerborg · · Score: 4, Insightful

      Bingo, we're into Drake Equation territory here.

      Hell, even if you do know about it, good luck actually using it. After 15 minutes of apt-get fiddling and chanting mantras, I'm still unable to get the damn thing working in GIMP 2.6.7. For a feature whose primary purpose is to save you time, it sure could do with an FONT OF GOD sized install guide that explains how to (actually) get it working.

      --
      If you were blocking sigs, you wouldn't have to read this.
    6. Re:I'm sure... by dancingmilk · · Score: 3, Informative

      You claim to know where the website is... The FIRST PAGE of the website gives install instructions, source download, and RPM/DEB packages.

      Why do people complain when they are too stupid/lazy to take 5 seconds to read 1 page? Honestly if you can't be bothered to read 2 lines of text to learn how to install something, you probably should be using Photoshop anyway.

    7. Re:I'm sure... by Alphathon · · Score: 5, Insightful

      I think the main problem most "pseudo-professionals" have with GIMP is familiarity. I myself use OpenOffice.org regularly and the transition from Microsoft Office was extremely simple - download it and start using it. The same is not true of GIMP since it's UI is so different than Photoshops. These "pseudo-professionals", almost certainly have a long history with Photoshop, so understand how to do things using it's UI, but likely don't even know where to start with GIMP and write it off as useless. It is closed minded, but certainly understandable on a professional/semi-professional level. Blender seems to suffer the same problem, since it's UI is vastly different than any other 3D program I've tried (although since there are more available than in the photo-editing world no one program has a "monopoly" on the UI so it's not quite as bed).

      Most FOSS doesn't tend to have this problem because it either does a specific task that has no industry standard UI, Emulates the industry standard UI (like OpenOffice.org) or is so simple that it makes little difference how the UI is designed as long as it works (things like 7-zip for example - its function is to open and create archives. You don't have 100s of filters and tools to use so everything can be put into a couple of menus and not be confusing).

    8. Re:I'm sure... by geordie_loz · · Score: 5, Funny

      Look, it's clearly a case of the open source community failing to innovate and just copying the competition. They're getting so desperate now that they even resorting to copying features from propriety software a couple of years before they appear..

    9. Re:I'm sure... by Daengbo · · Score: 2

      "How dow I download it? I can't figure it out! This sucks!" "It's the big, fuchsia section that says 'Download.'" In this situation, it really was stupid. No fanboy required.

    10. Re:I'm sure... by Daengbo · · Score: 5, Informative

      It's in the AUR as a package for Arch. I don't even use Arch and it took me thirty seconds to find this. It's the very first page when you Google for "arch linux resynthesizer." You want to be 1337 "cause I use Arch?" Learn to Google.

    11. Re:I'm sure... by Zaiff+Urgulbunger · · Score: 5, Informative

      I installed it pretty easy under Ubuntu (9.10):
      $ sudo apt-get install gimp-resynthesizer
      However, when I first tried using it, I was using the Filter->Map->Resynthesize... menu option which kind of works, but isn't so great. I had to google to find a good explanation of how to use it. What you should do is:
      1. Install as above,
      2. Select area of image to remove,
      3. Use Filters->Enhance->Smart remove selection...

      And to be clear about this - it is fucking awesome. Seriously! I'm not usually _that_ impressed with things (I'm far too old!), but this goes into total witch-craft territory, it is *that* good!

      If anyone has managed to install this plugin under Windows, I'd like to know the instructions for doing so (not for me... it's for my *friends*... honest!!!).

    12. Re:I'm sure... by arose · · Score: 2, Informative

      It works reasonably well, but be aware of the limitations. Resynthesizer was originally made for texture enlargement, so you are best of working in chunks where you want a uniform texture. If it keeps pulling in texture that doesn't match you might have to create a layer isolating the matching texture and use the plug in itself (instead of the "Smart Remove" tool it is bundled with) to specify that layer as the texture source, make sure the source and target layers color spaces match, it will refuse to use an RGBA source with an RGB target. If they are both RGBA (the most realistic case), Resythesizer might leave small holes in the image, they are easily filled with a quick "Smart Remove".

      If this sounds too complicated to any of you, you should try doing it by hand... Tools help, they don't do the job for you.

      --
      Analogies don't equal equalities, they are merely somewhat analogous.
    13. Re:I'm sure... by mugginz · · Score: 3, Informative

      Ah yes, the classic open source fanboy response. If something is difficult to use in any way, you are "stupid". Hilarious.

      Well you clearly aren't using Ubuntu then or an equaly useable distro.

      *Now, lets see. Open the Ubuntu Software Center,
      *in the search box type resynth (It should now be displayed)
      *Click the Resynthesizer item
      *Click install

      Now start GIMP, create a new image and hey presto, in Filters->Map you'll see the entry for Resynthesizer

      Surely that's not that hard.

      Oh, and having been called upon more than a few time to install PS plugins I can assure you it's
      completely plugin dependent how easy or hard that can be. Sometimes PS is no walk in the park.

      I swear, the anti FOSS trolls aren't even trying these days, they just assume if it's Linux it's always hard.

    14. Re:I'm sure... by arose · · Score: 4, Interesting

      Maybe once they straighten out their UI issues it'll get better. GIMP has been around seemingly forever - people have criticized the UI from the start, and it's STILL never been addressed.

      People will find a new pet issue to criticize. What most of them really mean is "I don't care, I don't want to try anything new", but that doesn't sound good, so they will always find a new issue as long as GIMP isn't a carbon copy of the latest version of Photoshop. For the record, there are no serious UI issues beyond it being unfamiliar, there is a ton of minor ones, but to see them you actually have to spend some time with the program, so unsurprisingly they are not the target of much criticism.

      --
      Analogies don't equal equalities, they are merely somewhat analogous.
    15. Re:I'm sure... by mugginz · · Score: 2, Informative

      Turning the screw: $1
      Knowing which screw and which way to turn it: $199

      I'm not a linux user. Are all plugins for all programs accessed that way?

      Quite often, yes. I'm sure if you look hard enough though you'll be able to find ones that aren't pre-packaged and then you'd need to read the web page from where you download the plugin. In this case it'd be somewhat similar to what is required for some PS plugins.

      Knowing which screw and which way to turn it: $199

      Just as with most things, some superficial knowledge is helpful but again, Linux software is no orphan in this respect and is also not always as hard as some would like to try to make out.

    16. Re:I'm sure... by Ian+Alexander · · Score: 3, Informative
      In addition, Adobe is probably maintaining their version. From the GIMP resynthesizer website:

      8/10/2009: I haven't really been keeping up with API changes in the GIMP, or with emails people send me. If you emailed me and I haven't replied, I'm sorry. If you want to take over as maintainer of this project, email me. Other emails will probably continue to sit unread in my inbox.

      That would be as of August last year...

    17. Re:I'm sure... by NeoSkandranon · · Score: 2, Interesting

      That's certainly part of it in the professional world.

      I've logged way more hours (as a hobbyist) in GIMP than I have in photoshop.  I still dislike it mostly for the window management (which i've heard is better or at least changeable recently, but I haven't had a reason to go check) but a lot of other things (eg the file saving process) strike me as clumsy.

      On a non-UI note, I wish it'd use multiple cores the way Lightroom (and I presume photoshop) happily will.

      --
      If you can't see the value in jet powered ants you should turn in your nerd card. - Dunbal (464142)
    18. Re:I'm sure... by Animaether · · Score: 3, Interesting

      For the record, there are no serious UI issues beyond it being unfamiliar, there is a ton of minor ones, but to see them you actually have to spend some time with the program, so unsurprisingly they are not the target of much criticism.

      If 'some time' is more than 10 minutes.. sure.

      I use The GIMP. A lot. Almost exclusively, in fact. My secondary editor? Picture Publisher 5.0a from 1995. It's 16bit. No, that's not the color bitdepth - that's the "Was made for Windows 3.x" bit. Only reason is because it still does some things better/faster. (Tertiary is a toss-up between several.. actually, if IrfanView would count as an 'editor', it'd be 3rd).

      I'm familiar with its interface, I'm familiar with how it differs from Photoshop, I simply moved the floating dialogs around on the screen with a big central window to get a more familiar feel.. no problem.

      But it still only took me 10 minutes to realize there's a -huge- UI-related workflow issue with The Gimp...
      No. Unified. Transform tool.

      In The Gimp, you may:
      A. Scale
      B. Rotate
      C. Shear
      D. Distort (called the Perspective tool, but as each corner point is independent, I'm not too sure about that term).

      Pick any one - but only one.
      No, you can not scale down -and- rotate*. You can scale down - and then you can rotate. Two operations - twice the filtering. In fact, you'd probably want to rotate first, and -then- scale, just so the rotation operation has more data to work on for a higher quality result.
      ( * unless you want to get crackin' with a calculator and determine the new corner pixels and use the Distort (perspective) transform. )

      Apparently it's on the list for 2.8 - so here's hoping.
      ( I'd point to the gui.gimp.org topic on the unified transform tool, but that site is - once again - blank. )

      Ideally it would never actually put anything into pixels until you requested it to be (so that a layer scaled down to 10% and then back up by 1000% would simply yield the original image give-or-take some float precision errors), but that's much further away and not really UI/workflow related.

    19. Re:I'm sure... by Vintermann · · Score: 2, Informative

      The author writes on the plugin's page that he doesn't have time to maintain it any longer, and is looking for someone to take over. Apparently it was a thesis of some sort and now it's done (sad fate of much interesting academic software).

      --
      xkcd is not in the sudoers file. This incident will be reported.
  3. The real questions have already been answered by AUSman · · Score: 5, Funny
  4. Re:The real questions have already been answered by cc1984_ · · Score: 4, Funny

    I was going to say this is NSFW, but on closer inspection, I just don't know what to say.

  5. Re:The real questions have already been answered by rvw · · Score: 2, Funny

    I was going to say this is NSFW, but on closer inspection, I just don't know what to say.

    A picture is worth a thousand breasts!

  6. Plugin vs built-in by gaspyy · · Score: 4, Informative

    I can't speak for everyone who uses PS and/or Gimp, just for myself.

    The real news was not the ability to do this kind of interpolation, but the fact that's built-in and integrated in the workflow.
    For Photoshop, Alien Skin Image Doctor has been available for years (2002 maybe). What matters for me is that I no longer need to use a plugin and I can use this smart fills in several scenarios, including as a brush to remove fine things like wires.

    The same goes with another new feature in PS CS5, the new selection tools. There were at least 2 or 3 plugins (like Fluid Mask) that could do tricky selections, but now it's built-in.
    Same with the new lens corrections, no need for PTLens anymore, I can even profile my own lenses using the new lens profile creator from the labs.

    I don't want to sound like I'm defending Adobe here, I used to hate them. For 10 years I've been using Corel Photo-Paint (from v3 to X3) plus a few others including The Gimp. In the end I realized that despite its shortcomings, PS really is the best tool for the job. When you're under pressure to deliver, small differences add up.

  7. Re:It's GPL, so merge it by Steve+Max · · Score: 2, Insightful

    Then people will say, "Look how Gimp quickly put together a crappy imitation of Photoshop's content aware!"

    It's a lose-lose situation now, unless Resynth gets much better and offers results at least as good as Photoshop's in every situation, which is probably not going to happen anyway: since the algorithms have different strong points, each will be better in a different situation.

  8. Gotta love Google translate by Bearhouse · · Score: 2, Funny

    Seriously, it's a very useful tool to get the gist of things.
    More amusingly, it come up with gems like this, (FTA):

    The circus is armed: who is better at cutting the world?

  9. Re:Moot point by MrHanky · · Score: 4, Insightful

    Most of the 'prosumers' I've seen dismiss Gimp just repeat stuff they've read on Slashdot, knowing that it makes them look +5, insightful. They're probably as lazy when it comes to learning new tools as they are when it comes to independent thought.

  10. OT: GIMP scaling seems broken. by guidryp · · Score: 2, Interesting

    I know this is off topic, but I am not going to bother joining a GIMP forum.

    I installed GIMP (windows) yesterday. I wanted to downscale some images and do a light USM, but GIMP downscaled images came out looking over-sharpened before I even got to the USM step. I know downscaling does make images appear sharper if the original was a bit soft.

    But this is compared to downscaling in other programs. GIMP output looked over-sharpened with artifacts.

    I could find no setting that indicated it was doing any USM on scaling, so I promptly un-installed GIMP, since it can't do something this basic without degrading the image.

    1. Re:OT: GIMP scaling seems broken. by arose · · Score: 3, Informative

      Which algorithm did you use for scaling? Cubic interpolation simply doesn't do this, Sinc does, it works great for upscaling and rotation, but stick with Cubic for downscaling.

      --
      Analogies don't equal equalities, they are merely somewhat analogous.
  11. Re:Moot point by BetterSense · · Score: 3, Insightful

    It doesn't really matter. They will buy photoshop and diss Gimp as long as they THINK it's an important feature, regardless of whether it actually is at all.

    It's one of the great differences between proprietary software and open source software. If Gimp is indeed still 8 bit, it may be because the developers have found that that 16 bit color is not a great advantage to image editing. Meanwhile Adobe has found that 16 bit color is a great advantage to selling copies of photoshop.

  12. Re:Photoshop couldn't by Rand+Race · · Score: 2, Funny

    Well, that would be because you do printing in the physical world and not in the plane of platonic perfection where, apparently, all of the GIMP print jobs get sent to (I assume this since I have never seen, in 15 years in the biz, an actual print job made with GIMP). A cloud-filled wonderland where 4-color separations happen by magic, trapping is done for free by dedicated itinerant monks (trappists... get it?) and fluffy bunnies pre-flight your print jobs while you drink frothy mugs filled from the free-as-in-beer trees.

    It's the classic OSS answer to missing features: "Who needs it?"

    --
    Insanity is the last line of defence for the master diplomat. But you have to lay the groundwork early.
  13. Re:Moot point by arose · · Score: 2, Insightful

    If Gimp is indeed still 8 bit, it may be because the developers have found that that 16 bit color is not a great advantage to image editing.

    It still it, mostly because switching the engine over to something else is a fuckton of work, but it's finally underway. There is no question about 16-bit being useful, and I'm looking forward to the day when GIMP finally supports it. Meanwhile I'll make sure to do most of my adjustments in Ufraw. However I suspect many 'prosumers' and too many professionals don't have a good grasp of what exactly the limitations of 8-bit are and when 16-bit actually makes a difference. Computer graphics in general and digital photography in particular are technically heavy disciplines, and while one can get around without a good understanding of that things refusing to learn just because you're an 'artistic type' is a dead end. A person who is as good as you on the artistic side of things and has a good grasp on the technical side will always be your superior.

    --
    Analogies don't equal equalities, they are merely somewhat analogous.
  14. Doodads are great by Sheik+Yerbouti · · Score: 2, Interesting

    I am a proponent of FLOSS and I want the gimp to be great. But it does not matter until Gimp gets the basics right. Until the underlying pixel engine of Gimp can give Photoshop's pixel engine a run for it's money then the gee wiz features don't mean squat for anyone trying to do real work. Bottom line get back to me when the gimp can do full 16 bit per channel images throughout the entire program as quickly and efficiently as Photoshop can.

    This is one of the biggest problems with FLOSS the volunteer programmers go and work on the neat gee wiz stuff because that's whats more fun and easier. Getting people to do the hard unsexy stuff just does not happen in a timely fashion. The number of people who are good enough at the engineering to build a really solid pixel engine are quite rare. And the number of those people who are willing to do that in their free time gratis appears to be even more rare. I say this in a goading manner because I want someone to take up the challenge.. someone that can really make that happen.

  15. I smell FUD... by FreakCERS · · Score: 3, Interesting

    My Portuguese isn't exactly good (working on it), so I can't tell if this is explained in the article, but as I've used resynthesizer before, I noticed that their results looked far worse than what I usually experience. I've only tested one image, but there GIMP performed *much* better than what that blog would let you believe. I resynthesized the same area in the large picture, so for comparison, look at the original compared to this - then contrast to the small version supposedly done by gimp in the bottom right corner: Original My attempt (warning: 2.7MB, saved as PNG to avoid further artifacts).

  16. Re:Moot point by MobileTatsu-NJG · · Score: 3, Insightful

    Most professionals, who have narrow yet deep specialization in particular field, are very very reluctant to learn new tools. Yet always keep an eye on them.

    No we're not. We're happy to learn a new tool, especially when it saves us time/energy. That's why apps like ZBrush, Mudbox, 3D Coat, Modo, etc manage to find a market. Double bonus if it's cheap or free. The problem isn't reluctance, it's lack of time. And when an app goes out of it's way to be counter-intuitive, it's frustrating, especially when that change has no obvious benefit. (Look up ZBrush 2's history for a peek into why somebody would bother to accept BS like that.) Both the GIMP and Blender suffer from this problem to a maddening level. However, Open Office and FireFox are great examples of the other end of the spectrum. FireFox, in particular, is familiar enough to IE users but provides more functionality. GIMP's differences aren't 'quirks'.

    --

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

  17. Re:Moot point by spitzak · · Score: 2, Interesting

    Damn right, people are completely unaware of exactly what increasing the number of bits in a fixed-point format will do. They are assigning magical properties to it. It does nothing except make the problems a bit smaller and harder to see, possibly hiding them until it is too late and they bite you.

    If you are using 16 bits on modern processors you should be using half floats, representing the linear value of the color (ie double the value makes the image twice as bright or doubles the exposure). Using integers means you are living in the past, floating point has been faster than integers on modern CPUs for 10 years or more now, and hardware support for half floats is on most GPUs now and will probably appear in CPUs very soon.

    I have no idea what GECL (sp?) does but I do hope they have seen the light and support half and full float data as linear.

    8 bits encoded as sRGB is a nice compression format and there is nothing wrong with supporting that. But taking this flawed format and pretending that wasting more memory on it will "fix" it is stupid and shows that you have not studied the problem at all. But photo professionals have proven to be stupid over and over again, just look at them regugitating the same junk right here, whether they want to insult Gimp or Photoshop.