Page 255 - Web Applications (803) Class 11
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Sobel The Sobel filter distinguishes
between the horizontal and vertical
edges on a scaled picture. RGB-
scaled pictures are generated from
colour images.
Image Gradient This filter finds gradient boundaries
Filter along one or both gradient
directions.
Generic Filters
Generic filters serve as a general purpose filter for those that cannot be put elsewhere.
Dilate
Convolution Matrix
The active layer or selection’s dark regions are widened
It is used to examine an image's pixel value by utilising and enhanced by this filter.
mathematical formulas. You can build a custom filter
using this filter
Erode Distance Map
The active layer or selection’s bright regions are widened Each pixel in the image is changed to a grey value based
and enhanced by this filter. on how far it is from the closest pixel representing
an obstacle, which is typically a boundary pixel. The
distance can be calculated in a variety of ways.
After Applying Erode Filter
Multimedia Design—GIMP 253

