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I'm trying to optimize my photos for google insight. I'm using jpegoptim for it.

I'm using 

$jpegoptim --strip-all --max=60 myfile.jpg

but still google insight says that it is possible reduce file size +60%

Then I tried

$jpegoptim --strip-all --max=0 myfile.jpg

this time google insight says that every thing is perfect. But now quality is very poor.

Then, I have tried 

jpeg tran "jpegtran myfile.jpg > newmyfile.jpg

but filesize is more than jpegoptim's.

So,what is the best way to compress image for google insight?

Here is the images :

http://webbayi.net/notoptimized.jpg
http://webbayi.net/optimized.jpg
http://webbayi.net/max0.jpeg
fobus
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  • Well... why trust google's opinion? Decide yourself which setting is acceptable. If max=60 is wasting bits and max=0 is too bad, check the values within this range! – sascha Jul 17 '16 at 16:18
  • I'm wondering about google insight because it is important for seo. – fobus Jul 17 '16 at 16:20
  • Then try numbers inbetween this range. There is also mozjpeg, which might be a bit better at some costs (but jpegoptim/jpeg tran should be enough). If that's not working it will be hard to further optimize. You would need some image-processing steps like reducing dimensions, colors or blurring. – sascha Jul 17 '16 at 16:24
  • only --max=0 is accepted by google. --max=10 gives result as %10 possible to reduce. – fobus Jul 17 '16 at 16:26
  • Then show us the original image (and maybe the transforms with max=0, and max=10. It might be possible that color-reduction saves a lot. But it might also possible that google's algorithm is just failing. – sascha Jul 17 '16 at 16:30
  • I have edited my post, please check the photo links at the bottom of the page. – fobus Jul 17 '16 at 16:55
  • How is this a programming question? – 500 - Internal Server Error Jul 17 '16 at 16:57
  • Ok: the problem is not really about the usage of jpegoptim and co. but more about how to prepare & incorporate your images in your web-service. I'm sure googles service complaints because of the non-cropped nature of that image. >80% is white. As i'm not into that stuff i can't help here, but some short readings hint that this uncropped images are not really liked there. – sascha Jul 17 '16 at 17:00

1 Answers1

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I use nconvert to resize and then jpegoptim --force --max=70 --strip-icc --quiet

Ru Chern Chong
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GOZARCK
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