Kernel Generators [Convolution Operations]

Collaboration diagram for Kernel Generators:

Functions
imImage *	imKernelSobel (void)
imImage *	imKernelPrewitt (void)
imImage *	imKernelKirsh (void)
imImage *	imKernelLaplacian4 (void)
imImage *	imKernelLaplacian8 (void)
imImage *	imKernelLaplacian5x5 (void)
imImage *	imKernelLaplacian7x7 (void)
imImage *	imKernelGradian3x3 (void)
imImage *	imKernelGradian7x7 (void)
imImage *	imKernelSculpt (void)
imImage *	imKernelMean3x3 (void)
imImage *	imKernelMean5x5 (void)
imImage *	imKernelCircularMean5x5 (void)
imImage *	imKernelMean7x7 (void)
imImage *	imKernelCircularMean7x7 (void)
imImage *	imKernelGaussian3x3 (void)
imImage *	imKernelGaussian5x5 (void)
imImage *	imKernelBarlett5x5 (void)
imImage *	imKernelTopHat5x5 (void)
imImage *	imKernelTopHat7x7 (void)
imImage *	imKernelEnhance (void)

---

Detailed Description

Creates several known kernels

See im_kernel.h

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Function Documentation

imImage* imKernelSobel

(

void

)

Creates a kernel with the following values:

   1  2  1
   0  0  0
  -1 -2 -1

im.KernelSobel() -> kernel: imImage [in Lua 5] 

imImage* imKernelPrewitt

(

void

)

Creates a kernel with the following values:

   1  1  1
   0  0  0
  -1 -1 -1

im.KernelPrewitt() -> kernel: imImage [in Lua 5] 

imImage* imKernelKirsh

(

void

)

Creates a kernel with the following values:

   5  5  5
  -3  0 -3
  -3 -3 -3

im.KernelKirsh() -> kernel: imImage [in Lua 5] 

imImage* imKernelLaplacian4

(

void

)

Creates a kernel with the following values:

   0 -1  0 
  -1  4 -1 
   0 -1  0 

im.KernelLaplacian4() -> kernel: imImage [in Lua 5] 

imImage* imKernelLaplacian8

(

void

)

Creates a kernel with the following values:

  -1 -1 -1 
  -1  8 -1 
  -1 -1 -1 

im.KernelLaplacian8() -> kernel: imImage [in Lua 5] 

imImage* imKernelLaplacian5x5

(

void

)

Creates a kernel with the following values:

   0 -1 -1 -1  0
  -1  0  1  0 -1
  -1  1  8  1 -1
  -1  0  1  0 -1
   0 -1 -1 -1  0

im.KernelLaplacian5x5() -> kernel: imImage [in Lua 5] 

imImage* imKernelLaplacian7x7

(

void

)

Creates a kernel with the following values:

  -1 -1 -1 -1 -1 -1 -1
  -1 -1 -1 -1 -1 -1 -1
  -1 -1 -1 -1 -1 -1 -1
  -1 -1 -1 48 -1 -1 -1
  -1 -1 -1 -1 -1 -1 -1
  -1 -1 -1 -1 -1 -1 -1
  -1 -1 -1 -1 -1 -1 -1

im.KernelLaplacian7x7() -> kernel: imImage [in Lua 5] 

imImage* imKernelGradian3x3

(

void

)

Creates a kernel with the following values:

  0 -1 0  
  0  1 0  
  0  0 0  

im.KernelGradian3x3() -> kernel: imImage [in Lua 5] 

imImage* imKernelGradian7x7

(

void

)

Creates a kernel with the following values:

   0 -1 -1  0  1  1  0
  -1 -2 -2  0  2  2  1
  -1 -2 -3  0  3  2  1
  -1 -2 -3  0  3  2  1
  -1 -2 -3  0  3  2  1
  -1 -2 -2  0  2  2  1
   0 -1 -1  0  1  1  0

im.KernelGradian7x7() -> kernel: imImage [in Lua 5] 

imImage* imKernelSculpt

(

void

)

Creates a kernel with the following values:

  -1 0 0 
   0 0 0 
   0 0 1 

im.KernelSculpt() -> kernel: imImage [in Lua 5] 

imImage* imKernelMean3x3

(

void

)

Creates a kernel with the following values:

  1 1 1 
  1 1 1 
  1 1 1 

im.KernelMean3x3() -> kernel: imImage [in Lua 5] 

imImage* imKernelMean5x5

(

void

)

Creates a kernel with the following values:

  1 1 1 1 1 
  1 1 1 1 1 
  1 1 1 1 1 
  1 1 1 1 1 
  1 1 1 1 1 

im.KernelMean5x5() -> kernel: imImage [in Lua 5] 

imImage* imKernelCircularMean5x5

(

void

)

Creates a kernel with the following values:

  0 1 1 1 0 
  1 1 1 1 1 
  1 1 1 1 1 
  1 1 1 1 1 
  0 1 1 1 0 

im.KernelMean5x5() -> kernel: imImage [in Lua 5] 

imImage* imKernelMean7x7

(

void

)

Creates a kernel with the following values:

  1 1 1 1 1 1 1 
  1 1 1 1 1 1 1 
  1 1 1 1 1 1 1 
  1 1 1 1 1 1 1 
  1 1 1 1 1 1 1 
  1 1 1 1 1 1 1 
  1 1 1 1 1 1 1 

im.KernelMean7x7() -> kernel: imImage [in Lua 5] 

imImage* imKernelCircularMean7x7

(

void

)

Creates a kernel with the following values:

  0 0 1 1 1 0 0 
  0 1 1 1 1 1 0 
  1 1 1 1 1 1 1 
  1 1 1 1 1 1 1 
  1 1 1 1 1 1 1 
  0 1 1 1 1 1 0 
  0 0 1 1 1 0 0 

im.KernelCircularMean7x7() -> kernel: imImage [in Lua 5] 

imImage* imKernelGaussian3x3

(

void

)

Creates a kernel with the following values:

  1 2 1 
  2 4 2 
  1 2 1 

im.KernelGaussian3x3() -> kernel: imImage [in Lua 5] 

imImage* imKernelGaussian5x5

(

void

)

Creates a kernel with the following values:

  1  4  6  4 1 
  4 16 24 16 4 
  6 24 36 24 6 
  4 16 24 16 4 
  1  4  6  4 1 

im.KernelGaussian5x5() -> kernel: imImage [in Lua 5] 

imImage* imKernelBarlett5x5

(

void

)

Creates a kernel with the following values:

  1 2 3 2 1 
  2 4 6 4 2 
  3 6 9 6 3 
  2 4 6 4 2 
  1 2 3 2 1 

im.KernelBarlett5x5() -> kernel: imImage [in Lua 5] 

imImage* imKernelTopHat5x5

(

void

)

Creates a kernel with the following values:

   0 -1 -1 -1  0 
  -1 -1  3 -1 -1 
  -1  3  4  3 -1 
  -1 -1  3 -1 -1 
   0 -1 -1 -1  0 

im.KernelTopHat5x5() -> kernel: imImage [in Lua 5] 

imImage* imKernelTopHat7x7

(

void

)

Creates a kernel with the following values:

   0  0 -1 -1 -1  0  0
   0 -1 -1 -1 -1 -1  0 
  -1 -1  3  3  3 -1 -1 
  -1 -1  3  4  3 -1 -1 
  -1 -1  3  3  3 -1 -1 
   0 -1 -1 -1 -1 -1  0 
   0  0 -1 -1 -1  0  0 

im.KernelTopHat7x7() -> kernel: imImage [in Lua 5] 

imImage* imKernelEnhance

(

void

)

Creates a kernel with the following values:

   0 -1 -2 -1  0 
  -1 -4  0 -4 -1 
  -2  0 40  0 -2 
  -1 -4  0 -4 -1 
   0 -1 -2 -1  0 

im.KernelEnhance() -> kernel: imImage [in Lua 5]