jpeg image compression
jpeg image compression
Is there any command to make the jpeg image compressed without changing the quality and resolution of the image...
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Re: jpeg image compression
Jpeg files are always compressed. And they always lose quality (the pixels change) every time IM writes them. (Well, they almost always lose quality.)
Lower "-quality" settings give greater compression but more data loss. "-quality 100" gives least compression and least data loss.
Does that answer the question?
Lower "-quality" settings give greater compression but more data loss. "-quality 100" gives least compression and least data loss.
Does that answer the question?
snibgo's IM pages: im.snibgo.com
Re: jpeg image compression
Thanks ,
yea am using the same command
convert original.jpeg -quality 60 imagemagick_60.jpg but there is slight difference in quality compared to the original image.. Is there any alternate way to that..
yea am using the same command
convert original.jpeg -quality 60 imagemagick_60.jpg but there is slight difference in quality compared to the original image.. Is there any alternate way to that..
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- Posts: 12159
- Joined: 2010-01-23T23:01:33-07:00
- Authentication code: 1151
- Location: England, UK
Re: jpeg image compression
The best alternative is: don't use jpegs.
If the images are graphics with solid colours, png may give you better compression with no data loss.
If the images are graphics with solid colours, png may give you better compression with no data loss.
snibgo's IM pages: im.snibgo.com