no pdf?
In what scenario would that be useful? I'm just curious.
Probably when you accidentally scanned a document to PDF. Or when you received a document in PDF from some nasty man.
Show HN: Jpeg.io – Convert any major image format into a highly optimized JPEG
21–30 of 88 posts
Re: Show HN: Jpeg.io – Convert any major image format into a highly optimized JPEG
#22Did a quick comparison test with this beautiful piece of artwork I just created. original http://i.pi.gy/0K7d.png (2.1 MB) jpeg.io http://i.pi.gy/AP8v.jpg (102 KB) Photoshop 60% jpeg Export http://i.pi.gy/Wr4P.jpg (90 KB) tinypng.com http://i.pi.gy/ndKA.png (74 KB) Note pi.gy does not compress uploads.
Since he doesn't summarize the test above, let me. The jpeg.io result is bigger than the other two and noticeably worse quality. The problems were with the sharp lines. Perhaps jpeg.io specializes in photo-realistic pictures rather than graphics and logos.
That was your take away from the comparison? Wow ... I fail to see how the jpeg.io is worse than the other two examples.
Re: Show HN: Jpeg.io – Convert any major image format into a highly optimized JPEG
#23Has anyone gotten it to accept a webp image as input? It threw 'Error while processing this file' for the ~10 files I attempted with. They were all created with cwebp and the photo preset.
I was, of course, quite curious if it could improve upon file size, as that was the main reason I was using webp in the first place.
Re: Show HN: Jpeg.io – Convert any major image format into a highly optimized JPEG
#24Did a quick comparison test with this beautiful piece of artwork I just created. original http://i.pi.gy/0K7d.png (2.1 MB) jpeg.io http://i.pi.gy/AP8v.jpg (102 KB) Photoshop 60% jpeg Export http://i.pi.gy/Wr4P.jpg (90 KB) tinypng.com http://i.pi.gy/ndKA.png (74 KB) Note pi.gy does not compress uploads.
I really wish people would stop using chroma sub-sampling in lieu of compression. It barely made sense when transmitting analog signals, and it definitely doesn't make sense now.
Re: Show HN: Jpeg.io – Convert any major image format into a highly optimized JPEG
#25Earlier quoted context omitted.
Since he doesn't summarize the test above, let me. The jpeg.io result is bigger than the other two and noticeably worse quality. The problems were with the sharp lines. Perhaps jpeg.io specializes in photo-realistic pictures rather than graphics and logos.
That was your take away from the comparison? Wow ... I fail to see how the jpeg.io is worse than the other two examples.
Look closely around the red and yellow rectangles and just about and edge meeting the blue and you will see. Open all 3 and tab one to the next and you will notice the big difference.
Re: Show HN: Jpeg.io – Convert any major image format into a highly optimized JPEG
#26Did a quick comparison test with this beautiful piece of artwork I just created. original http://i.pi.gy/0K7d.png (2.1 MB) jpeg.io http://i.pi.gy/AP8v.jpg (102 KB) Photoshop 60% jpeg Export http://i.pi.gy/Wr4P.jpg (90 KB) tinypng.com http://i.pi.gy/ndKA.png (74 KB) Note pi.gy does not compress uploads.
I would also note that the Photoshop export has very visible artifacting, and the tinypng compression killed the gradient. For the minimal size trade-off, the jpeg.io compression takes the W.
The jpeg.io version is a different image, though - it's got what look like drop shadows.
Re: Show HN: Jpeg.io – Convert any major image format into a highly optimized JPEG
#27Earlier quoted context omitted.
Since he doesn't summarize the test above, let me. The jpeg.io result is bigger than the other two and noticeably worse quality. The problems were with the sharp lines. Perhaps jpeg.io specializes in photo-realistic pictures rather than graphics and logos.
That was your take away from the comparison? Wow ... I fail to see how the jpeg.io is worse than the other two examples.
upon first glance it looks like the lines are blurry in the jpeg.io one compared to the original and other two.
If you zoom in a bit that may still be the case, but it looks like the overall image quality is much better.
The photoshop export has significant artifacts visible, while the jpeg.io compressed image has far fewer visible artifacts. The tinypng version isn't jpeg compressed but shows dithering as you would expect from a GIF file.
Re: Show HN: Jpeg.io – Convert any major image format into a highly optimized JPEG
#28Cool. When would you want to use JPEG over PNG though? I don't know much about these things (just using PNG/SVG everywhere).
Any time it's a photographic image (rather than a drawing, diagram or rasterised vector image).
Re: Show HN: Jpeg.io – Convert any major image format into a highly optimized JPEG
#29Strange, I uploaded this PNG [1] and it came 14,917 bytes larger:
$ ls -lhias
-rw-r--r-- 1 root root 2845 Sep 28 07:58 colors.png
-rw-r--r-- 1 root root 17762 Sep 28 07:59 optimized.jpg
[1] https://gist.github.com/anonymous/de2f5f8e6ecb5881e1357ebaf4...
Re: Show HN: Jpeg.io – Convert any major image format into a highly optimized JPEG
#30Earlier quoted context omitted.
I would also note that the Photoshop export has very visible artifacting, and the tinypng compression killed the gradient. For the minimal size trade-off, the jpeg.io compression takes the W.
The jpeg.io version is a different image, though - it's got what look like drop shadows.