441 lines
9.8 KiB
C++
441 lines
9.8 KiB
C++
/*
|
|
* This program source code file is part of KiCad, a free EDA CAD application.
|
|
*
|
|
* Copyright (C) 2015 Mario Luzeiro <mrluzeiro@gmail.com>
|
|
* Copyright (C) 1992-2015 KiCad Developers, see AUTHORS.txt for contributors.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, you may find one here:
|
|
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
|
|
* or you may search the http://www.gnu.org website for the version 2 license,
|
|
* or you may write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
/**
|
|
* @file CImage.cpp
|
|
* @brief one 8bit-channel image implementation
|
|
*/
|
|
|
|
#include "CImage.h"
|
|
#include <wx/image.h> // Used for save an image to disk
|
|
#include <string.h> // For memcpy
|
|
|
|
#ifndef CLAMP
|
|
#define CLAMP(n, min, max) {if (n < min) n=min; else if (n > max) n = max;}
|
|
#endif
|
|
|
|
|
|
CIMAGE::CIMAGE( unsigned int aXsize, unsigned int aYsize )
|
|
{
|
|
m_wxh = aXsize * aYsize;
|
|
m_pixels = (unsigned char*)malloc( m_wxh );
|
|
m_width = aXsize;
|
|
m_height = aYsize;
|
|
m_wraping = (E_WRAP)WRAP_CLAMP;
|
|
}
|
|
|
|
|
|
CIMAGE::~CIMAGE()
|
|
{
|
|
free( m_pixels );
|
|
}
|
|
|
|
|
|
unsigned char* CIMAGE::GetBuffer() const
|
|
{
|
|
return m_pixels;
|
|
}
|
|
|
|
|
|
bool CIMAGE::wrapCoords( int *aXo, int *aYo ) const
|
|
{
|
|
int x = *aXo;
|
|
int y = *aYo;
|
|
|
|
switch(m_wraping)
|
|
{
|
|
case WRAP_CLAMP:
|
|
x = (x < 0 )?0:x;
|
|
x = (x >= (int)(m_width - 1))?(m_width - 1):x;
|
|
y = (y < 0)?0:y;
|
|
y = (y >= (int)(m_height - 1))?(m_height - 1):y;
|
|
break;
|
|
case WRAP_WRAP:
|
|
x = (x < 0)?((m_width - 1)+x):x;
|
|
x = (x >= (int)(m_width - 1))?(x - m_width):x;
|
|
y = (y < 0)?((m_height - 1)+y):y;
|
|
y = (y >= (int)(m_height - 1))?(y - m_height):y;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if( (x < 0) || (x >= (int)m_width) ||
|
|
(y < 0) || (y >= (int)m_height) )
|
|
return false;
|
|
|
|
*aXo = x;
|
|
*aYo = y;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
void CIMAGE::Setpixel( int aX, int aY, unsigned char aValue )
|
|
{
|
|
if( wrapCoords( &aX, &aY ) )
|
|
m_pixels[aX + aY * m_width] = aValue;
|
|
}
|
|
|
|
|
|
unsigned char CIMAGE::Getpixel( int aX, int aY ) const
|
|
{
|
|
if( wrapCoords( &aX, &aY ) )
|
|
return m_pixels[aX + aY * m_width];
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
void CIMAGE::Invert()
|
|
{
|
|
for( unsigned int it = 0; it < m_wxh; it++ )
|
|
m_pixels[it] = 255 - m_pixels[it];
|
|
}
|
|
|
|
|
|
void CIMAGE::CopyFull( const CIMAGE *aImgA, const CIMAGE *aImgB, E_IMAGE_OP aOperation )
|
|
{
|
|
int aV, bV;
|
|
|
|
if( aOperation == COPY_RAW )
|
|
{
|
|
if ( aImgA == NULL )
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
if ( (aImgA == NULL) || (aImgB == NULL) )
|
|
return;
|
|
}
|
|
|
|
switch(aOperation)
|
|
{
|
|
case COPY_RAW:
|
|
memcpy( m_pixels, aImgA->m_pixels, m_wxh );
|
|
break;
|
|
|
|
case COPY_ADD:
|
|
for( unsigned int it = 0;it < m_wxh; it++ )
|
|
{
|
|
aV = aImgA->m_pixels[it];
|
|
bV = aImgB->m_pixels[it];
|
|
|
|
aV = (aV + bV);
|
|
aV = (aV > 255)?255:aV;
|
|
|
|
m_pixels[it] = aV;
|
|
}
|
|
break;
|
|
|
|
case COPY_SUB:
|
|
for( unsigned int it = 0;it < m_wxh; it++ )
|
|
{
|
|
aV = aImgA->m_pixels[it];
|
|
bV = aImgB->m_pixels[it];
|
|
|
|
aV = (aV - bV);
|
|
aV = (aV < 0)?0:aV;
|
|
|
|
m_pixels[it] = aV;
|
|
}
|
|
break;
|
|
|
|
case COPY_DIF:
|
|
for( unsigned int it = 0;it < m_wxh; it++ )
|
|
{
|
|
aV = aImgA->m_pixels[it];
|
|
bV = aImgB->m_pixels[it];
|
|
|
|
m_pixels[it] = abs(aV - bV);
|
|
}
|
|
break;
|
|
|
|
case COPY_MUL:
|
|
for( unsigned int it = 0;it < m_wxh; it++ )
|
|
{
|
|
aV = aImgA->m_pixels[it];
|
|
bV = aImgB->m_pixels[it];
|
|
|
|
m_pixels[it] = (unsigned char)((((float)aV / 255.0f) * ((float)bV / 255.0f)) * 255);
|
|
}
|
|
break;
|
|
|
|
case COPY_AND:
|
|
for( unsigned int it = 0;it < m_wxh; it++ )
|
|
{
|
|
m_pixels[it] = aImgA->m_pixels[it] & aImgB->m_pixels[it];
|
|
}
|
|
break;
|
|
|
|
case COPY_OR:
|
|
for( unsigned int it = 0;it < m_wxh; it++ )
|
|
{
|
|
m_pixels[it] = aImgA->m_pixels[it] | aImgB->m_pixels[it];
|
|
}
|
|
break;
|
|
|
|
case COPY_XOR:
|
|
for( unsigned int it = 0;it < m_wxh; it++ )
|
|
{
|
|
m_pixels[it] = aImgA->m_pixels[it] ^ aImgB->m_pixels[it];
|
|
}
|
|
break;
|
|
|
|
case COPY_BLEND50:
|
|
for( unsigned int it = 0;it < m_wxh; it++ )
|
|
{
|
|
aV = aImgA->m_pixels[it];
|
|
bV = aImgB->m_pixels[it];
|
|
|
|
m_pixels[it] = (aV + bV) / 2;
|
|
}
|
|
break;
|
|
|
|
case COPY_MIN:
|
|
for( unsigned int it = 0;it < m_wxh; it++ )
|
|
{
|
|
aV = aImgA->m_pixels[it];
|
|
bV = aImgB->m_pixels[it];
|
|
|
|
m_pixels[it] = (aV < bV)?aV:bV;
|
|
}
|
|
break;
|
|
|
|
case COPY_MAX:
|
|
for( unsigned int it = 0;it < m_wxh; it++ )
|
|
{
|
|
aV = aImgA->m_pixels[it];
|
|
bV = aImgB->m_pixels[it];
|
|
|
|
m_pixels[it] = (aV > bV)?aV:bV;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
// TIP: If you want create or test filters you can use GIMP
|
|
// with a generic convolution matrix and get the values from there.
|
|
// http://docs.gimp.org/nl/plug-in-convmatrix.html
|
|
static const S_FILTER FILTERS[] = {
|
|
// Hi Pass
|
|
{
|
|
{ { 0, -1, -1, -1, 0},
|
|
{-1, 2, -4, 2, -1},
|
|
{-1, -4, 13, -4, -1},
|
|
{-1, 2, -4, 2, -1},
|
|
{ 0, -1, -1, -1, 0}
|
|
},
|
|
7,
|
|
255
|
|
},
|
|
|
|
// Blur
|
|
{
|
|
{ { 3, 5, 7, 5, 3},
|
|
{ 5, 9, 12, 9, 5},
|
|
{ 7, 12, 20, 12, 7},
|
|
{ 5, 9, 12, 9, 5},
|
|
{ 3, 5, 7, 5, 3}
|
|
},
|
|
182,
|
|
0
|
|
},
|
|
|
|
// Blur Invert
|
|
{
|
|
{ { 0, 0, 0, 0, 0},
|
|
{ 0, 0, -1, 0, 0},
|
|
{ 0, -1, 0, -1, 0},
|
|
{ 0, 0, -1, 0, 0},
|
|
{ 0, 0, 0, 0, 0}
|
|
},
|
|
4,
|
|
255
|
|
},
|
|
|
|
//
|
|
{
|
|
{ { 0, 2, 4, 2, 0},
|
|
{ 2, -2, 1, -2, 2},
|
|
{ 4, 1, -8, 1, 4},
|
|
{ 2, -2, 1, -2, 2},
|
|
{ 0, 2, 4, 2, 0}
|
|
},
|
|
20,
|
|
0
|
|
},
|
|
|
|
// Cartoon
|
|
{
|
|
{ {-1, -1, -1, -1, 0},
|
|
{-1, 0, 0, 0, 0},
|
|
{-1, 0, 4, 0, 0},
|
|
{ 0, 0, 0, 1, 0},
|
|
{ 0, 0, 0, 0, 4}
|
|
},
|
|
3,
|
|
0
|
|
},
|
|
|
|
// Emboss
|
|
{
|
|
{ {-1, -1, -1, -1, 0},
|
|
{-1, -1, -1, 0, 1},
|
|
{-1, -1, 0, 1, 1},
|
|
{-1, 0, 1, 1, 1},
|
|
{ 0, 1, 1, 1, 1}
|
|
},
|
|
1,
|
|
128
|
|
},
|
|
|
|
// Sharpen
|
|
{
|
|
{ {-1, -1, -1, -1, -1},
|
|
{-1, 2, 2, 2, -1},
|
|
{-1, 2, 8, 2, -1},
|
|
{-1, 2, 2, 2, -1},
|
|
{-1, -1, -1, -1, -1}
|
|
},
|
|
8,
|
|
0
|
|
},
|
|
|
|
// Melt
|
|
{
|
|
{ { 4, 2, 6, 8, 1},
|
|
{ 1, 2, 5, 4, 2},
|
|
{ 0, -1, 1, -1, 0},
|
|
{ 0, 0, -2, 0, 0},
|
|
{ 0, 0, 0, 0, 0}
|
|
},
|
|
32,
|
|
0
|
|
},
|
|
|
|
// Sobel Gx
|
|
{
|
|
{ { 0, 0, 0, 0, 0},
|
|
{ 0, -1, 0, 1, 0},
|
|
{ 0, -2, 0, 2, 0},
|
|
{ 0, -1, 0, 1, 0},
|
|
{ 0, 0, 0, 0, 0}
|
|
},
|
|
1,
|
|
0
|
|
},
|
|
|
|
// Sobel Gy
|
|
{
|
|
{ { 1, 2, 4, 2, 1},
|
|
{-1, -1, 0, 1, 1},
|
|
{-2, -2, 0, 2, 2},
|
|
{-1, -1, 0, 1, 1},
|
|
{-1, -2, -4, -2, -1},
|
|
},
|
|
1,
|
|
0
|
|
}
|
|
};// Filters
|
|
|
|
|
|
//!TODO: This functions can be optimized slipting it between the edges and
|
|
// do it without use the getpixel function.
|
|
// Optimization can be done to m_pixels[ix + iy * m_width]
|
|
// but keep in mind the parallel process of the algorithm
|
|
void CIMAGE::EfxFilter( CIMAGE *aInImg, E_FILTER aFilterType )
|
|
{
|
|
S_FILTER filter = FILTERS[aFilterType];
|
|
|
|
aInImg->m_wraping = WRAP_CLAMP;
|
|
m_wraping = WRAP_CLAMP;
|
|
|
|
#ifdef USE_OPENMP
|
|
#pragma omp parallel for
|
|
#endif /* USE_OPENMP */
|
|
|
|
for( int iy = 0; iy < (int)m_height; iy++)
|
|
{
|
|
for( int ix = 0; ix < (int)m_width; ix++ )
|
|
{
|
|
int v = 0;
|
|
|
|
for( int sy = 0; sy < 5; sy++ )
|
|
{
|
|
for( int sx = 0; sx < 5; sx++ )
|
|
{
|
|
int factor = filter.kernel[sx][sy];
|
|
unsigned char pixelv = aInImg->Getpixel( ix + sx - 2, iy + sy - 2 );
|
|
v += pixelv * factor;
|
|
}
|
|
}
|
|
|
|
v /= filter.div;
|
|
|
|
v += filter.offset;
|
|
|
|
CLAMP(v, 0, 255);
|
|
|
|
m_pixels[ix + iy * m_width] = v;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void CIMAGE::SetPixelsFromNormalizedFloat( const float * aNormalizedFloatArray )
|
|
{
|
|
for( unsigned int i = 0; i < m_wxh; i++ )
|
|
{
|
|
int v = aNormalizedFloatArray[i] * 255;
|
|
CLAMP(v, 0, 255);
|
|
m_pixels[i] = v;
|
|
}
|
|
}
|
|
|
|
|
|
void CIMAGE::SaveAsPNG( wxString aFileName ) const
|
|
{
|
|
unsigned char* pixelbuffer = (unsigned char*) malloc( m_wxh * 3 );
|
|
|
|
wxImage image( m_width, m_height );
|
|
|
|
for( unsigned int i = 0; i < m_wxh; i++)
|
|
{
|
|
unsigned char v = m_pixels[i];
|
|
// Set RGB value with all same values intensities
|
|
pixelbuffer[i * 3 + 0] = v;
|
|
pixelbuffer[i * 3 + 1] = v;
|
|
pixelbuffer[i * 3 + 2] = v;
|
|
}
|
|
|
|
image.SetData( pixelbuffer );
|
|
image = image.Mirror( false );
|
|
image.SaveFile( aFileName + ".png", wxBITMAP_TYPE_PNG );
|
|
image.Destroy();
|
|
}
|