Sparsely Sample Image

Edit > Sparsely Sample Image

Generate a Random distribution or regular Grid of pixels on a blank image. Can be done randomly with a specified retained percentage or in a regular grid with specified pixel spacing.

1. Method

• Random: Use random sampling to produce sparse image
• Grid: Sparsely sample using regularly-spaced grid. Can be used to generate horizontal or vertical lines by setting the X Axis Value to 1 or Y Axis Value to 1 respectively. For example, X value of 1 and Y value of 5 will result in a horizontal line every 5 pixels using the step method.

2. X Axis Value

Define either the step size, or number values.

3. X Axis Method

• Step: set space between selected pixels (black).
• Number: set a specified number of points per side.
  

4. Y Axis Value

Define either the step size, or number values.

5. Y Axis Method

• Step: set space between selected pixels (black).
• Number: set a specified number of points per side.

6. Link X and Y Method

Used to unlink the X and Y Methods allowing the grid to use different methods for the X and Y axis. For example, X axis can use a set number of points and Y axis can use regular spacing.

7. Random Rate

Percentage of pixels to select (black) vs total pixels in the image.