====== BlurDivide ======
BlurDivide divides an image by a blurred version of itself. Each output pixel is the input pixel's value divided by the average of its neighbors inside a chosen shape.

^ Shape ^ Neighborhood ^
| circle (default) | a circle whose diameter is "width" (at least 4) |
| rectangle | a rectangle of "width" × "height" (each at least 1) |
| diamond | a square rotated by 45°, whose diagonal is "width" (at least 2) |

If you do not give a size, the neighborhood is 101 × 101 pixels. If you give only the width, the height is the same. "number of blurs" applies the blur 1, 2 or 3 times before the division.

The input can be byte, integer or floating point, and the output is floating point. For blurring alone, see [[basic_level:enhancement:blur_sharpen|Blur, Sharpen]].