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 Post subject: Compression Ratio
PostPosted: Fri, 2008-06-27, 13:29 
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Joined: Thu, 2008-06-19, 13:26
Posts: 10
Location: Marburg, Germany
Hello,

i have another question regarding to JPEG2000 compression. i have compressed mammography images (26MB), where the images have a large area of black surface. The problem is, all the images that i have compressed couldn't be lees than compression ratio 50, it stops compression before 50. Or to be precise, the compression before 50, have the same file size. What can i do in order to reach a smaller compression ratio such as 10 to 30 but with difference file size?

regards,
sam


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 Post subject: compression ratio
PostPosted: Wed, 2008-07-02, 07:54 
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Joined: Thu, 2008-06-19, 13:26
Posts: 10
Location: Marburg, Germany
hello,

i have found out the answer as well, in fact the large surface of black area made a very big difference in compression ratio. mammo image with bigger breast area give me a lower compression ratio, and vice versa. thanks if you all are trying hard to look out the answer for me. :)

cheers,
sam 8)


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