tritentrue Posted November 17, 2018 Author Share #21 Posted November 17, 2018 (edited) Advertisement (gone after registration) Here it is as sRGB at 671 kb . . . and still gets compressed to 256 kb . . . but at least it looks a little better . . . I recently changed my work flow from mac to ipad pro, but this issue started well before that. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Edited November 17, 2018 by tritentrue Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/291532-image-compression-by-the-forum-software-revisited/?do=findComment&comment=3632586'>More sharing options...
Advertisement Posted November 17, 2018 Posted November 17, 2018 Hi tritentrue, Take a look here Image compression by the forum software revisited. I'm sure you'll find what you were looking for!
ianman Posted November 17, 2018 Share #22 Posted November 17, 2018 Have you tried optimising the files before uploading? I keep banging on about this in various similar threads, but optimising is not compressing. Optimising removes a load of unnecessary data from the jpg files. One of the following files has been optimised. The non optimised one is 450KB, the optimised one is 141KB. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/291532-image-compression-by-the-forum-software-revisited/?do=findComment&comment=3632606'>More sharing options...
ianman Posted November 17, 2018 Share #23 Posted November 17, 2018 Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/291532-image-compression-by-the-forum-software-revisited/?do=findComment&comment=3632608'>More sharing options...
andybarton Posted November 17, 2018 Share #24 Posted November 17, 2018 And how does one optimise a jpg using PS? Link to post Share on other sites More sharing options...
jaapv Posted November 17, 2018 Share #25 Posted November 17, 2018 I say the problem is in the editing. This is ten seconds on the compressed file: Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/291532-image-compression-by-the-forum-software-revisited/?do=findComment&comment=3632631'>More sharing options...
ianman Posted November 17, 2018 Share #26 Posted November 17, 2018 I don't use PS... or any Adobe product. There are free and paid tools both online and standalone applications. I have been using JPEGmini for years. I have also found that their resizing algorithms are much better than anything else I have used. So from Iridient, I export to .jpg with the compression set to the least (they call it "Quality: Best"). Then resize and optimise with JPEGmini. Interestingly, the forum software has - somehow - reduced the size of the 450KB file to 156KB. It's quite possible that Andreas is using an optimising library behind the scenes. This would explain how both files end up at roughly the same size. 1 Link to post Share on other sites More sharing options...
pico Posted November 17, 2018 Share #27 Posted November 17, 2018 Advertisement (gone after registration) 37 minutes ago, andybarton said: And how does one optimise a jpg using PS? Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! 1 1 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/291532-image-compression-by-the-forum-software-revisited/?do=findComment&comment=3632644'>More sharing options...
andybarton Posted November 17, 2018 Share #28 Posted November 17, 2018 Must have missed that but it’s been checked on my PS for years. Thanks 1 Link to post Share on other sites More sharing options...
jaapv Posted November 17, 2018 Share #29 Posted November 17, 2018 It also shows that Prophoto colours don't render at all well on internet browsers (or indeed computer screens). Even Adobe RGB should be avoided for web use. 1 Link to post Share on other sites More sharing options...
tritentrue Posted November 17, 2018 Author Share #30 Posted November 17, 2018 6 hours ago, jaapv said: I say the problem is in the editing. This is ten seconds on the compressed file: Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Ten seconds to accomplish what? Sounds like you're criticizing what you assume to be my editing skills. FTR, all I did with this photo before uploading was resize it and make sure it was sRGB. "Editing" for aesthetics has nothing to do with a website compressing a 900kb file down to 200kb, and that is the issue here. I appreciate Andy's efforts to find a solution. But your deflection and misdirection are starting to get irksome. Link to post Share on other sites More sharing options...
jaapv Posted November 17, 2018 Share #31 Posted November 17, 2018 The thing is that I don't like the compression either, but I find the effect on the image display quality for my images minimal. I wonder why your images suffer so much. Looking for reasons, not criticising. If it so appeared, apologies, it was unintentional, Link to post Share on other sites More sharing options...
jaapv Posted November 21, 2018 Share #32 Posted November 21, 2018 As an example: This image was compressed fro 975 bytes to 571 bytes by the forum software, yet it did not suffer any significant degradation: BTW, weirdly, the upload window reported 953 bytes at first upload. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/291532-image-compression-by-the-forum-software-revisited/?do=findComment&comment=3634685'>More sharing options...
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