# subtractcv

Finds differences in each element of `source1` and
`source2`.

## Syntax

R = subtractcv(source1, source2...)

R = subtractcv(source1, source2, mask, depth)

## Inputs

`source1`- Handle of an image, scalar or a 2D real matrix. If
`source1`and`source2`are image handles, their size and number of channels must match. `source2`- Handle of an image, scalar or a 2D real matrix. If
`source1`and`source2`are image handles, their size and number of channels must match. `mask`- Optional handle of an 8-bit single channel image or a 2D matrix of natural numbers
representing the elements in
`R`that need to be changed. `depth`- Optional parameter specifying the depth of
`R`. If negative, the same depth as`source1`and`source2`will be used.

## Outputs

- R
- Handle of the output image.

## Example

Subtract two images:

```
source1 = imreadcv('image1.jpg');
source2 = imreadcv('image2.jpg');
R = subtractcv(source1, source2);
```