﻿ Flags for the ApplyMathematicalLogicCommand - Namespace - Raster, Medical, Document Help

# Flags for the ApplyMathematicalLogicCommand

The following flags indicate the channel that will be used:

 Value Meaning Master All channels. Red Red channel only. Green Green channel only. Blue Blue channel only.

The following flags indicate how to treat the color value:

 Value Meaning ValueDoNothing No change. ValueNot Invert the color, resulting in its complement. ValueZero Change all bits to 0. ValueOne Change all bits to 1.

The following flags indicate the mathematical operation to use. The operations are performed between each component (R, G and B) and Factor:

 Value Meaning OperationAnd Combine each pixel component value and nFactor using a bitwise AND (&). (pixel = pixel & Factor) OperationOr Combine each pixel component value and nFactor using a bitwise OR ( ¦ ). (pixel = pixel | Factor) OperationXor Combine each pixel component value and nFactor using a bitwise XOR (^). (pixel = pixel ^ Factor) OperationAdd Add pixel component value to the nFactor clamping the result to the maximum allowed pixel value. (pixel = min(pixel + Factor, MaximumPixelValue) ) OperationSubtractFactor Subtract each pixel component value from the nFactor, clamping the result to the allowed pixel range. (pixel = min(max(Factor - pixel, MinimumPixelValue), MaximumPixelValue) ) OperationSubtractValue Subtract nFactor from each pixel component value, clamping the result to the allowed pixel range (pixel = min(max(pixel - Factor), MinimumPixelValue, MaximumPixelValue) ) OperationAbsoluteDifference Calculate the absolute difference between Factor and each pixel component value. (pixel = abs(pixel - Factor)) OperationMultiply Multiply each pixel component value by Factor/100. (pixel = pixel * Factor / 100) OperationDivisionByFactor Divide each pixel component value by Factor/100. An error will be returned if Factor = 0. (pixel = pixel * 100 / Factor) OperationDivisionByValue Divide nFactor by each pixel values. If the pixel values are 0, the result set to maximum allowed pixel value. (pixel = pixel ? min(Factor / pixel, MaximumPixelValue) : MaximumPixelValue) OperationAverage Use the average of the each pixel component value and Factor. (pixel = (pixel+Factor) / 2). OperationMinimum Use the lesser of the pixel component values and Factor: (pixel = min(pixel, Factor) ) OperationMaximum Use the greater of the pixel component values and Factor: (pixel = max(pixel, Factor) )

The way MinimumPixelValue and MaximumPixelValue are calculated depends on the bits per pixel and whether the image is signed or unsigned:

if the image is unsigned (most common):

MaximumPixelValue will be : 255 (8-bit), 4095 (12-bit) or 65535 (16-bit)

MinimumPixelValue = 0

if the image is signed (rare case):

MaximumPixelValue will be : 127 (8-bit), 2047 (12-bit) or 32767 (16-bit)

MinimumPixelValue will be -128 (8-bit), -2048 (12-bit) or -32768 (16-bit)

The following flags indicate how to treat the output value:

 Value Meaning ResultDoNothing No change. ResultNot Invert the color, resulting in its complement. ResultZero Change all bits to 0. ResultOne Change all bits to 1.

If the Flags property is OperationAnd, OperationOr, OperationXor, OperationAdd, OperationMinumum, OperationMultiply, OperationMaximum, OperationDivisionByValue , or OperationSubtractValue, the valid range of Factor is:

From MinimumPixelValue to MaximumPixelValue.

For Flags equal to OperationSubtractFator, OperationDifference, OperationAverage, the valid range of Factor is: From 2 * MinimumPixelValue to 2 * MaximumPixelValue.

Help Version 19.0.2017.10.27
Products | Support | Contact Us | Copyright Notices
© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.