DESCRIPTIONComputes the histogram normalization of an image. The data values of the image are rescaled so that the histogram of the output image is approximately a bell-shaped normal curve with the desired Mean and Std Deviation. Each source channel is normalized independently. This operation can be used to enhance the contrast of an image. Histogram normalization is discussed in:
Digital Image Processing, Gonzales, R.C., Wintz, P., Addison Wesley, Second Edition, 1987, pp 144--160.
Port: Img In
Port: Std Deviation
Desired standard deviation.
Port: Img Out
Normalized histogram image.
SEE ALSOHistogram, HistEqualImg, HistScaleImg.
Note: the Histogram module is not present in every implementation of IRIS Explorer.
© The Numerical Algorithms Group Ltd, Oxford UK. 2000