i am new at iopencv

opencv

asked 2014-02-24 03:51:35 -0600

shiv.butekar
31 ●1 ●1 ●3

i want to know how a color image is stored in matrix what are the vales of each cell how is bgr combination is being managed how much bytes it take to store the each pixel thaks in advance

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oh, read a bit (and welcome, btw ..)

berak ( 2014-02-24 03:54:39 -0600 )edit

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answered 2014-02-24 04:58:12 -0600

Spas Hristov

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Google it.
If don't find anything - ask here.

Now on the question: In opencv are couple of formats for data in a matrix. For example CV_8UC3 - 3 channel image with 1 unsigned byte for each (B0,G0,R0,B1,G1,R1,B2....). That is the basic color image format (that you will get from imread function).

If your image is gray scale it will be CV_8UC1. You can convert BGR image to grayscale with cvtColor(src, dist, CV_BGR2GRAY).

For double is CV_64F, for float CV_32F and etc.