Contents

MPSImageThresholdToZero

A filter that returns the original value for each pixel with a value greater than a specified threshold or 0 otherwise.

Declaration

class MPSImageThresholdToZero

Overview

An MPSImageThresholdToZero filter converts a single channel image to a binary image. If the input image is not a single channel image, the function first converts the input image into a single channel luminance image using the linear gray color transform, and then it applies the threshold.

The following listing shows the threshold to zero function.

Listing 1. Threshold to zero function

destinationPixelValue = sourcePixelValue > thresholdValue ? sourcePixelValue : 0

Topics

Initializers

Methods

Properties

See Also

Image Threshold Filters