histogramcv

Computes the histogram of the red, green and blue colors of an image.

Syntax

R = histogramcv(handle, bins, dims)

[R, R1] = histogramcv(handle, bins, 1)

handle: Handle of an image.; Type: integer
bins: Number of bins in the histogram, the value must be a positive integer.; Type: integer
dims: Dimension of the histogram. Valid values are 1 or 2. A value of 1 will generate a 1D histogram and a value of 2 will generate A 2D histogram.; Type: integer

R: Handle of the histogram image.; Type: integer
R1: Handle of the histogram image with axes information. This is valid only for 1-dimensional histograms.; Type: integer

Generate a 1D histogram for the input image:


handle = imreadcv('image1.jpg');
bins = 256;
dims = 1;
R = histogramcv(handle, bins, dims);
plothandle = imshowcv(R);

Generate 1D histograms with axes information:


handle = imreadcv('image1.jpg');
bins = 256;
[R, R1] = histogramcv(handle, bins, 1);
plothandle = imshowcv(R1);