BGR pixel transformations

function

asked 2015-02-07 00:24:51 -0600

Evoxz
6 ●3

updated 2015-02-07 00:25:34 -0600

Hi :) I'm searching for a function wich is able to get the BGR data of any pixel (with the X/Y coordinates of this pixel) and change it. Do you know something about a function like that? I program in C++.

Best regards, Evoxz

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See an example here

Haris ( 2015-02-07 01:27:15 -0600 )edit

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answered 2015-02-07 01:11:13 -0600

jamesnzt

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updated 2015-02-07 03:06:54 -0600

berak
32993 ●7 ●81 ●312

Mat img=imread("<<filename>.<extension>>",CV_LOAD_IMAGE_COLOR);

int i=;//row pixel co-ordinate;
int j= ;//coloumn pixel co-ordinate;
Vec3b intensity = img.at<Vec3b>(i,j);
float blue=intensity.val[0];
float green=intensity.val[1];
float red=intensity.val[2];

the variables blue,green and red contains the BGR value.