JPEG compression (y, cb, cr) arrays

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*i want to get the (y, Cb, Cr) values from an (R, G, B) values of a bitmap image.
how can i do that, is there any algorithm to do that by a vb code?
i want to work on the (y, Cb, Cr) after that for encryption.
please help.

Posted 25-Sep-11 21:04pm

Brainy Girl

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-09-25T21:09:00

Solution 1

JPEG supports only sRGB and Adobe RGB: http://en.wikipedia.org/wiki/JPEG#Color_profile[^]. Also, the question has nothing to do with compression.

You can convert JPEG into bitmap, get bitmap data and convert pixels. I don't thing VBScript is a serious tool though.

—SA

Posted 25-Sep-11 21:09pm

Sergey Alexandrovich Kryukov

Comments

Brainy Girl 26-Sep-11 3:20am

my question is: how to do this algorithm mentioned in your URL by code???