<< imshow SIVP - Scilab Image and Video Processing Toolbox imwrite >>

SIVP - Scilab Image and Video Processing Toolbox >> SIVP - Scilab Image and Video Processing Toolbox > imsubtract

imsubtract

Subtract two images or subtract a constant from an image

Calling Sequence

imout = imsubtract(im1, im2)

Parameters

im1
Input image.
im2
Input image with the same size and same class with im1, or a double scalar.
imout
The difference of im1 and im2.

Description

If im1 and im2 are images with the same size and same class, imsubtract subtracts each element in im2 from the corresponding one in im1. If im2 is a double scalar, the element in imout is the difference of the corresponding one in im1 with the double scalar. imout has the same size and class with im1.

If im1 is an integer matrix, the elements in the output matrix imout that exceed the range of the integer type will be truncated.

Supported classes: INT8, UINT8, INT16, UINT16, INT32, DOUBLE.

Examples

im1 = imread('lena.png');
im2 = imread('peppers.png');
ims1 = imsubtract(im1, im2);
ims2 = imsubtract(im1, 50);

Authors

Availability

The latest version of SIVP can be found at

http://sivp.sf.net

See Also

<< imshow SIVP - Scilab Image and Video Processing Toolbox imwrite >>