User Guide

Canvas 12 User Guide
The Convolve filter is applied to every pixel in an image. The center of the matrix matches the source
pixel and the other matrix components relate to the surrounding pixels.
The resulting pixel is calculated by multiplying the value of each source pixel by the corresponding
value in the kernel and then adding the results.
To preserve image brightness:
1. Select the Normalize kernel check box. This option causes each matrix value to be divided by
the sum of the values.
2. Click Apply to see the filter effect on the image. If the convolution is not appropriate, click
Revert and try another one.
3. Click OK to apply the filter and close the dialog box.
To save a kernel:
1. Define the kernel.
2. Click on the menu icon and select Save kernel as.
3. In the Save kernel as dialog box, enter a name for the kernel and click OK.
Saved kernels appear at the bottom of the menu when you click the menu icon.
To delete a kernel:
1. Click on the menu icon and select Delete kernel.
2. In the Delete kernel preset dialog box, select the kernel to be deleted and then click OK.
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