Contrast Stretch

The 'Black Threshold' property specifies the minimum area, in physical units (such as pt, in, or mm), that must be present in the darkest region of the image for it to be considered the black point. This helps prevent isolated dark pixels (such as noise) from skewing the contrast adjustment.

• Increase this value to require a larger contiguous area of dark pixels before adjusting the black point.
• Example: Set to 5pt to require at least a 5-point area of black before stretching.

The 'Black Limit' property controls how far the black point can be shifted, as a percentage of the full intensity range (0 to 1). This prevents excessive stretching that could cause loss of detail in dark regions.

• Set to 0.2 (20%) to allow the black point to move up to 20% of the intensity range.
• Lower values preserve more shadow detail; higher values increase contrast but may clip dark details.

The 'White Limit' property controls how far the white point can be shifted, as a percentage of the full intensity range (0 to 1). This prevents excessive stretching that could cause loss of detail in bright regions.

• Set to 0.2 (20%) to allow the white point to move down by up to 20% of the intensity range.
• Lower values preserve more highlight detail; higher values increase contrast but may clip bright details.

The 'Command Type Name' property shows the user-friendly name of the IP Command as it appears in the Grooper UI. This helps users identify which command is being configured or executed, especially when working with IP Profiles containing multiple commands.

This property is read-only and is automatically set based on the command's type.

The 'Supported Pixel Formats' property lists the image pixel formats that the IP Command can process. If an image does not match one of these formats, the command will be skipped for that image.

• By default, all pixel formats are supported unless a derived command restricts this list.
• Example formats include Pixel8bppGrayscale, Pixel24bppBgr, and Pixel1bppIndexed.

Use this property to verify compatibility when building IP Profiles or troubleshooting why a command did not execute.