User Guide

GNU Image Manipulation Program
559 / 653
Figure 15.235: Filter Length example on texture
On the left: a texture with Noise Length=3. On the right, the same texture with Noise Length=24.
Noise Magnitude This options controls the amount and size of White Noise. Low values produce finely grained surfaces. High
values produce coarse-grained textures.
Figure 15.236: Action example of Noise Magnitude on texture
Noise magnitude = 4
Integration Steps This options controls the influence of gradient map on texture.
Figure 15.237: Action example of Integration Steps on texture
On the left: Integration Steps = 2. On the right: Integration Steps = 4.
Minimum/Maximum values Both values determine a range controlling texture contrast: shrinked range results in high contrast
and enlarged range results in low contrast.
Figure 15.238: Action example of Min/max values on texture
Minimum value = -4,0. Maximum value = 5,0.