- Feb 21, 2013
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I always use jpg (saving @ quality 80) when it is just a picture to look at with decent image quality and reasonable disk size.
I have a bunch of scanned books I downloaded from archive.org and they mostly come in jp2 format. Now jp2 while very efficient on image size is not recognized format for cbr readers, so I have been converting jp2 to jpg format and the image size blew up considerably. It kind of destroyed my longstanding view of jpg format as being good for disk size.
Looking at some alternatives, I noticed this webp format that I have also seen in places lately and thought it is some format specific for displaying in webpages, probably low quality something... but it turns up it is, or seems to be a successor to jpg format that came out in 2010, so it is relatively new but not so new as to not be accepted by programmers.
I see that Inkscape, IrfanView, comics reader CDisplayEx and Icecream book reader use it but other comic cbr cbz readers don't recognize it. I don't know what you guys in mir community use to display images in, if the image viewers you use open and save in webp format. So if I would upload a bunch of images in webp format, I wouldn't hear complaints. I don't know if its a good idea to transition to webp format on my computer with regard to compatibility with the world out there. You can convert back to jpg but as always, each conversion loses some quality...
BTW my phones cameras (both Android and iOS) save as jpg too, never looked what formats are available if there is an option. Inkscape gives an option to save lossless webp and that yields huge sizes, like 10 times bigger, IrfanView doesn't offer lossless option.
I have a bunch of scanned books I downloaded from archive.org and they mostly come in jp2 format. Now jp2 while very efficient on image size is not recognized format for cbr readers, so I have been converting jp2 to jpg format and the image size blew up considerably. It kind of destroyed my longstanding view of jpg format as being good for disk size.
Looking at some alternatives, I noticed this webp format that I have also seen in places lately and thought it is some format specific for displaying in webpages, probably low quality something... but it turns up it is, or seems to be a successor to jpg format that came out in 2010, so it is relatively new but not so new as to not be accepted by programmers.
I see that Inkscape, IrfanView, comics reader CDisplayEx and Icecream book reader use it but other comic cbr cbz readers don't recognize it. I don't know what you guys in mir community use to display images in, if the image viewers you use open and save in webp format. So if I would upload a bunch of images in webp format, I wouldn't hear complaints. I don't know if its a good idea to transition to webp format on my computer with regard to compatibility with the world out there. You can convert back to jpg but as always, each conversion loses some quality...
BTW my phones cameras (both Android and iOS) save as jpg too, never looked what formats are available if there is an option. Inkscape gives an option to save lossless webp and that yields huge sizes, like 10 times bigger, IrfanView doesn't offer lossless option.
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