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/** \file
* \brief Unary Arithmetic Operations
*
* See Copyright Notice in im_lib.h
* $Id: im_arithmetic_un.cpp,v 1.1 2008/10/17 06:16:33 scuri Exp $
*/
#include <im.h>
#include <im_util.h>
#include <im_math.h>
#include <im_complex.h>
#include "im_process_pon.h"
#include "im_math_op.h"
#include <stdlib.h>
#include <memory.h>
// Fake complex operations for real types
static inline imbyte conj_op(const imbyte& v) {return v;}
static inline imushort conj_op(const imushort& v) {return v;}
static inline int conj_op(const int& v) {return v;}
static inline float conj_op(const float& v) {return v;}
static inline imbyte cpxnorm_op(const imbyte& v) {return v;}
static inline imushort cpxnorm_op(const imushort& v) {return v;}
static inline int cpxnorm_op(const int& v) {return v;}
static inline float cpxnorm_op(const float& v) {return v;}
static inline imcfloat conj_op(const imcfloat& v)
{
imcfloat r;
r.real = v.real;
r.imag = -v.imag;
return r;
}
static inline imcfloat cpxnorm_op(const imcfloat& v)
{
imcfloat r;
float rmag = cpxmag(v);
if (rmag != 0.0f)
{
r.real = v.real/rmag;
r.imag = v.imag/rmag;
}
else
{
r.real = 0.0f;
r.imag = 0.0f;
}
return r;
}
template <class T1, class T2>
static void DoUnaryOp(T1 *map, T2 *new_map, int count, int op)
{
int i;
switch(op)
{
case IM_UN_ABS:
for (i = 0; i < count; i++)
new_map[i] = abs_op((T2)map[i]);
break;
case IM_UN_INV:
for (i = 0; i < count; i++)
new_map[i] = inv_op((T2)map[i]);
break;
case IM_UN_EQL:
for (i = 0; i < count; i++)
new_map[i] = (T2)map[i];
break;
case IM_UN_INC:
for (i = 0; i < count; i++)
new_map[i] = (T2)(new_map[i] + map[i]);
break;
case IM_UN_LESS:
for (i = 0; i < count; i++)
new_map[i] = less_op((T2)map[i]);
break;
case IM_UN_SQR:
for (i = 0; i < count; i++)
new_map[i] = sqr_op((T2)map[i]);
break;
case IM_UN_SQRT:
for (i = 0; i < count; i++)
new_map[i] = (T2)sqrt_op(map[i]);
break;
case IM_UN_LOG:
for (i = 0; i < count; i++)
new_map[i] = log_op((T2)map[i]);
break;
case IM_UN_SIN:
for (i = 0; i < count; i++)
new_map[i] = sin_op((T2)map[i]);
break;
case IM_UN_COS:
for (i = 0; i < count; i++)
new_map[i] = cos_op((T2)map[i]);
break;
case IM_UN_EXP:
for (i = 0; i < count; i++)
new_map[i] = exp_op((T2)map[i]);
break;
case IM_UN_CONJ:
for (i = 0; i < count; i++)
new_map[i] = conj_op((T2)map[i]);
break;
case IM_UN_CPXNORM:
for (i = 0; i < count; i++)
new_map[i] = cpxnorm_op((T2)map[i]);
break;
}
}
void imProcessUnArithmeticOp(const imImage* src_image, imImage* dst_image, int op)
{
int total_count = src_image->count * src_image->depth;
switch(src_image->data_type)
{
case IM_BYTE:
if (dst_image->data_type == IM_FLOAT)
DoUnaryOp((imbyte*)src_image->data[0], (float*)dst_image->data[0], total_count, op);
else if (dst_image->data_type == IM_INT)
DoUnaryOp((imbyte*)src_image->data[0], (int*)dst_image->data[0], total_count, op);
else if (dst_image->data_type == IM_USHORT)
DoUnaryOp((imbyte*)src_image->data[0], (imushort*)dst_image->data[0], total_count, op);
else
DoUnaryOp((imbyte*)src_image->data[0], (imbyte*)dst_image->data[0], total_count, op);
break;
case IM_USHORT:
if (dst_image->data_type == IM_BYTE)
DoUnaryOp((imushort*)src_image->data[0], (imbyte*)dst_image->data[0], total_count, op);
else if (dst_image->data_type == IM_INT)
DoUnaryOp((imushort*)src_image->data[0], (int*)dst_image->data[0], total_count, op);
else if (dst_image->data_type == IM_FLOAT)
DoUnaryOp((imushort*)src_image->data[0], (float*)dst_image->data[0], total_count, op);
else
DoUnaryOp((imushort*)src_image->data[0], (imushort*)dst_image->data[0], total_count, op);
break;
case IM_INT:
if (dst_image->data_type == IM_BYTE)
DoUnaryOp((int*)src_image->data[0], (imbyte*)dst_image->data[0], total_count, op);
else if (dst_image->data_type == IM_USHORT)
DoUnaryOp((int*)src_image->data[0], (imushort*)dst_image->data[0], total_count, op);
else if (dst_image->data_type == IM_FLOAT)
DoUnaryOp((int*)src_image->data[0], (float*)dst_image->data[0], total_count, op);
else
DoUnaryOp((int*)src_image->data[0], (int*)dst_image->data[0], total_count, op);
break;
case IM_FLOAT:
DoUnaryOp((float*)src_image->data[0], (float*)dst_image->data[0], total_count, op);
break;
case IM_CFLOAT:
DoUnaryOp((imcfloat*)src_image->data[0], (imcfloat*)dst_image->data[0], total_count, op);
break;
}
}
void imProcessSplitComplex(const imImage* image, imImage* NewImage1, imImage* NewImage2, int polar)
{
int total_count = image->count*image->depth;
imcfloat* map = (imcfloat*)image->data[0];
float* map1 = (float*)NewImage1->data[0];
float* map2 = (float*)NewImage2->data[0];
for (int i = 0; i < total_count; i++)
{
if (polar)
{
map1[i] = cpxmag(map[i]);
map2[i] = cpxphase(map[i]);
}
else
{
map1[i] = map[i].real;
map2[i] = map[i].imag;
}
}
}
void imProcessMergeComplex(const imImage* image1, const imImage* image2, imImage* NewImage, int polar)
{
int total_count = image1->count*image1->depth;
imcfloat* map = (imcfloat*)NewImage->data[0];
float* map1 = (float*)image1->data[0];
float* map2 = (float*)image2->data[0];
for (int i = 0; i < total_count; i++)
{
if (polar)
{
float phase = map2[i];
if (phase > 180) phase -= 360;
phase /= 57.2957795f;
map[i].real = (float)(map1[i] * cos(phase));
map[i].imag = (float)(map1[i] * sin(phase));
}
else
{
map[i].real = map1[i];
map[i].imag = map2[i];
}
}
}
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