dangermouse Posted June 16, 2008 Share Posted June 16, 2008 It would be nice if support for saving progressive JPEGs was added. Progressive JPEGs are nice for webpages on slow connections, as they get gradually sharper wen being loaded. On top of that,. they are usually a tad smaller than normal (baseline) JPEGs And while we're at it ... it would also be nice if the subsampling factor could be chosen in the "Save as JPEG" Dialog. Right now the JPEG export is quite basic, as only the quality (0-100) could be selected. These two improvements would make it MUCH nicer Best regards, dangermouse 1 Link to comment Share on other sites More sharing options...
dangermouse Posted June 20, 2008 Author Share Posted June 20, 2008 *BUMP* Come on guys, who's with me on that one IMHO this is a quite desirable feature which should be at least put on the roadmap. Link to comment Share on other sites More sharing options...
Myrddin Posted June 20, 2008 Share Posted June 20, 2008 Terribly sorry for the ignorance, you seemed to have unfortunately and regretfully 'slipped through the net', so to speak. I'm primarily a PNG user, very rarely resorting to saving in JPEG - I use the BMP format for my desktop wallpapers nowadays. I have no comments regarding your request, I just didn't want to see you further neglected. Hang in there, dangermouse, people will come around soon! How to Save Your Images under Different File Types My dA Gallery Link to comment Share on other sites More sharing options...
D3z Posted June 22, 2008 Share Posted June 22, 2008 I don't know were you are from dangermouse and I don't knwo much about these settings but the one were the picture increases in quality will satisfy me because I live in South Africa and the average internet connection is 384kbps (yes we do actually have internet in Africa dont look so amazed). Bottom line is that I agree. "Confusion is the welcome mat at the door of creativity." -Michaul Gelb My Gallery Check it out! Link to comment Share on other sites More sharing options...
dangermouse Posted June 23, 2008 Author Share Posted June 23, 2008 I have added a screenshot of The GIMP's Save as JPEG dialogue. There you can see the options for saving Jpegs as progressive and for selecting the subsampling factor. I think these would make *really* nice and overdue additions to Paint-NET's JPEG export. here is some additional Info on progressive JPEGs: Note: There is an additional benefit not mentioned the following explanation: As I said above, progressive JPEGs usually have a slightly smaller filesize with identical quality when compared to "normal" JPEGs. -------------------------------------------------------------------------- A simple or "baseline" JPEG file is stored as one top-to-bottom scan of the image. Progressive JPEG divides the file into a series of scans. The first scan shows the image at the equivalent of a very low quality setting, and therefore it takes very little space. Following scans gradually improve the quality. Each scan adds to the data already provided, so that the total storage requirement is roughly the same as for a baseline JPEG image of the same quality as the final scan. (Basically, progressive JPEG is just a rearrangement of the same data into a more complicated order.) The advantage of progressive JPEG is that if an image is being viewed on-the-fly as it is transmitted, one can see an approximation to the whole image very quickly, with gradual improvement of quality as one waits longer; this is much nicer than a slow top-to-bottom display of the image. The disadvantage is that each scan takes about the same amount of computation to display as a whole baseline JPEG file would. So progressive JPEG only makes sense if one has a decoder that's fast compared to the communication link. (If the data arrives quickly, a progressive-JPEG decoder can adapt by skipping some display passes. Hence, those of you fortunate enough to have T1 or faster net links may not see any difference between progressive and regular JPEG; but on a modem-speed link, progressive JPEG is great.) Except for the ability to provide progressive display, progressive JPEG and baseline JPEG are basically identical, and they work well on the same kinds of images. It is possible to convert between baseline and progressive representations of an image without any quality loss. (But specialized software is needed to do this; conversion by decompressing and recompressing is *not* lossless, due to roundoff errors.) ----------------------------------------------------------------------------------- Link to comment Share on other sites More sharing options...
Myrddin Posted June 24, 2008 Share Posted June 24, 2008 If nothing else, subsampling would be a charm. Before switching to BMP, I realised quickly that the highest subsampling of The GIMP's JPEGs were of a much higher quality than Paint.NET's. Whether my imagination or otherwise, I do not know, the fact is, it would be an excellent addition. I can also see the benefits of a progressive JPEG option, and it equally would make an excellent compliment to PDN's array of file formats and options. I personally cannot speak on behalf of Rick, the lead developer, on the matter for numerous reasons, so I won't. If nobody else has, I second dangermouse's motion. How to Save Your Images under Different File Types My dA Gallery Link to comment Share on other sites More sharing options...
dangermouse Posted July 3, 2008 Author Share Posted July 3, 2008 :arrow: Can we get any "official" info if this has at least made it onto the roadmap ? There is no real hurry for this feature, but it would be nice to see this planned for some future release. All the best, Dangermouse Link to comment Share on other sites More sharing options...
MikeGlew Posted June 4, 2019 Share Posted June 4, 2019 I 100% agree and would use this if it was offered... M Link to comment Share on other sites More sharing options...
Ego Eram Reputo Posted June 4, 2019 Share Posted June 4, 2019 Thread has been dead for eleven years. If you wish to restart a conversation, please start a new thread rather then reviving something this old. Thanks ebook: Mastering Paint.NET | resources: Plugin Index | Stereogram Tut | proud supporter of Codelab plugins: EER's Plugin Pack | Planetoid | StickMan | WhichSymbol+ | Dr Scott's Markup Renderer | CSV Filetype | dwarf horde plugins: Plugin Browser | ShapeMaker Link to comment Share on other sites More sharing options...
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