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What Does Jpeg Compression Look Like? 

Jose Rodriguez Photo Printing Techie
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18 сен 2024

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Комментарии : 7   
@dunnymonster
@dunnymonster 6 лет назад
I always shoot in RAW and edit in LR and Photoshop. One of my main reasons why I've taken an interest in photo printing is being able to keep everything within the Raw domain, from capture, editing and finally print output. If I source printing I would be expected to provide sRGB jpegs, already my image is degraded before it even gets to print.
@cheo1949
@cheo1949 6 лет назад
Absolutely true!
@steveloudon7491
@steveloudon7491 5 лет назад
Very interesting but I have a question. What determines the final file size of the jpeg? I have a 24MP camera and after editing then storing uncropped images as jpegs on my computer different images have wildly different file sizes. So obviously the MP are the same but why the different file sizes? Thank you.
@cheo1949
@cheo1949 5 лет назад
When you compress to jpeg you throw out about90 percent of tbe digital information. What gets thrown out? It depends greatly on the image. If it is 24 MP Of nothing but middle gray it can compress the he'll out of the image and you would end up with a very light weight file. A highly detailed image would not be able to be compressed as much and so it would " weigh " more. But why in the world are you converting to jpegs. The worst file format that exists. Digital storage is dirt cheap now a days.
@steveloudon7491
@steveloudon7491 5 лет назад
@@cheo1949 I appreciate your quick response. To your question, 2 reasons. I'm going to start dabbling in stock photography and they accept jpeg files as long as they are 4MP or greater. Also social media requires jpeg I think. Actually I'm mostly interested in the stock photography. What format would you recommend that I use. I have no problem buying extra storage space. Again thank you very much.
@cheo1949
@cheo1949 5 лет назад
What do you shoot at? I hope it's raw. And I hope you are saving those. You have no choice for what you are offering but if was buying stock photos I would demand at least tiff or I would not deal with that company. They obviously can not handle the larger file size of an non lossy higher quality tiff file. Jpg is fine for Social Media.
@steveloudon7491
@steveloudon7491 5 лет назад
@@cheo1949 I shoot only RAW. Occasionally I'll do a RAW and jpeg at the same time just for curiosity to see the difference after I've edited the file. But 98 percent of the time it's RAW
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