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Reuters Bans RAW Photo Format (petapixel.com)
grcumb writes: Reuters is the latest agency to join the ranks of the technically clueless who think that ethical problems can be solved using technical means. They recently issued a circular to their contributors, stating in part: "In future, please don't send photos to Reuters that were processed from RAW or CR2 files. If you want to shoot raw images that's fine, just take JPEGs at the same time. Only send us the photos that were originally JPEGs, with minimal processing...." The problem they claim to be addressing is doctored images, but they don't explain how they plan to ensure that the JPEGs weren't simply exported from RAW files with their EXIF data altered, or heck, just altered as JPEG. They also assert that getting JPEG files straight from the camera is quicker, which is fair enough. Lots of professionals shoot with RAW+JPEG at newsworthy events. They can send the JPEGs off quickly to meet the first deadline, then process the RAW files at leisure for higher quality publications.
They're not trying to prevent "doctored" images.
The original memo reads:
I’d like to pass on a note of request to our freelance contributors due to a worldwide policy change.. In future, please don’t send photos to Reuters that were processed from RAW or CR2 files. If you want to shoot raw images that’s fine, just take JPEGs at the same time. Only send us the photos that were originally JPEGs, with minimal processing (cropping, correcting levels, etc).
And a follow-up quote reads
While we aim for photography of the highest aesthetic quality, our goal is not to artistically interpret the news. [...] Speed is also very important to us. We have therefore asked our photographers to skip labour and time consuming processes to get our pictures to our clients faster.
Which doesn't mean they're trying to prevent people from faking photos; as that line is clearly referring to the "minimal editing" part of the above guidelines, and the "JPG not RAW" is just for workflow-related reasons.
No. Processing raw files involves more than just compression, it includes things like demosaicing and setting white balance.
Is a JPEG at 0% compression a RAW image?
It would be close but not exact. The way you would get close is to set the 8x8 quantization matrix to all 1's. In JPEG compression, the image is divided into 8x8 blocks, discrete cosine transformed, elementwise divided by an 8x8 quantization matrix, rounded to the nearest integer, and then (usually) Huffman encoded. The primary problem with being perfectly lossless is that the DCT produces a fractional result. So even if you set the quantization matrix to all 1's, the rounding step would lose information.
Care to enlighten me as to how one sets jpeg compression to 0%?
It's not easy to do in most image editors; even the highest (12) quality setting in Photoshop has quantization. You can do it in ImageMagick, however.
Also, no, RAW formats are not simply uncompressed, but largely unprocessed data as well (certainly less processed than what you get from an out of camera tif or jpf.)
Raw formats are indeed compressed; they're just losslessly compressed.
Finally, there is a true lossless JPEG format, though it is distinct from the usual JPEGs.
They have no idea how real photography works. JPG is a 'final' format. You capture an image on an SLR as RAW so you get all of the information the sensor can give you, and then you process it to pull the JPGs you want to give to the user of your shots. In journalism, many photographs are taken under marginal conditions, such as four stops below optimum in a sandstorm. Shooting RAW gives you the most latitude to recover usable images that might give us the ability to identify a terrorist. You can apply high dynamic range processing to a single RAW frame to show detail not recoverable any other way, and given a bracket of five RAW frames one stop apart, even handheld, you can postprocess them into a great picture.
Yes, today's journalism photography is being done with many devices that shoot JPG as their native mode, and as any photographer will tell you, the best camera in the world is the one you have with you. But anyone who prohibits high-detail RAW imagery is a person who does not deserve to be in journalism. Manufacturers have responded to the phone-photography challenge with formats like Micro Four Thirds, which gives you SLR versatility in a compact body and lens format that you can take to wherever the news is being made.