inrangecv

Syntax

R = inrangecv(cvhandle, lower, upper)

Inputs

cvhandle

Handle of the image from a imreadcv command.

Type: integer

lower

Real vector or scalar containing lower bound element(s). Size of lower must be equal to the number of channels in the image represented by cvhandle.

Type: double | vector

upper

Real vector or scalar containing upper bound element(s). Size of upper must be equal to the number of channels in the image represented by cvhandle.

Type: double | vector

Outputs

R

Handle of the binary image showing specifying which pixels are in range. The output will be the same size as the image represented by cvhandle. Pixels in R will be 0 if they are not in the range and 255 otherwise.

Type: integer

Examples

Apply bitwiseandcv and inrangecv functions to perform cloud detection:

img = imreadcv('Clouds.jpg', 1);
figure(1); 
imshowcv(img);

white_ = [255, 255, 255];
lowerBound = [200,200,200];

mask = inrangecv(img, lowerBound, white_);
res = bitwiseandcv(img, img, mask);

figure(2); 
imshowcv(res);

Figure 1. Input image

Figure 2. Output image

cvhandle = imreadcv('image1.jpg');
R = inrangecv(cvhandle, 0, 255);

cvhandle = imreadcv('image1.jpg');
R = inrangecv(cvhandle, [0 100 0], [255 255 255]);