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HxTanh

Synopsis

HxImageRep HxTanh (HxImageRep img)

Input

HxImageRep img

The image you want to take the hyperbolic tangent of.

Return value

HxImageRep

The pixelwise hyperbolic tangent of the input image.

Description

This function takes the hyperbolic tangent of every pixel value of the input image. For vector images, the hyperbolic tangent of every element of the vector is taken.

Remarks

No possible errors

This function can not result in any errors.

Examples

Taking the hyperbolic tangent of an image.

#include "HxImageRepGlobalFuncs.h"
#include "HxImageRep.h"

HxImageRep HxTanhExample1(HxImageRep img) {
   img = HxImageAsDouble(img);
   img = HxContrastStretch(img, 4.0);
   img = HxAddVal(img, -2.0);
   img = HxTanh(img);
   img = HxContrastStretch(img, 255.0);
   img = HxImageAsByte(img);
   return img;
}

int main(int argc, char* argv[])
{
    HxImageRep im1 = HxMakeFromFile(argv[1]);
    im1 = HxTanhExample1(im1);
    HxWriteFile(im1, argv[2]);

    return 0;
}

Input image for the HxTanh example.

Output image of the HxTanh example.

This example illustrates the result of taking the hyperbolic tangent of an image.

See also

HxTan, HxSinh, HxAtan,

Keywords

Unary, Trigonometric,

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