/*
@description Returns the normalized black color of the pixel wand.
*/
value nMagick_pixel_get_black( value pixel )
{
PixelWand *pix;
val_check_kind( pixel, k_pixel );
pix = PIXEL( pixel );
return alloc_float( PixelGetBlack( pix ) );
}
/* {{{ proto float GmagickPixel::getColorValue(int color )
Gets the normalized color of the GmagickPixel.
*/
PHP_METHOD(gmagickpixel, getcolorvalue)
{
php_gmagickpixel_object *internp;
zend_long color;
double color_value = 0;
/* Parse parameters given to function */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &color) == FAILURE) {
return;
}
internp = Z_GMAGICKPIXEL_OBJ_P(getThis());
switch (color) {
case GMAGICK_COLOR_BLACK:
color_value = PixelGetBlack(internp->pixel_wand);
break;
case GMAGICK_COLOR_BLUE:
color_value = PixelGetBlue(internp->pixel_wand);
break;
case GMAGICK_COLOR_CYAN:
color_value = PixelGetCyan(internp->pixel_wand);
break;
case GMAGICK_COLOR_GREEN:
color_value = PixelGetGreen(internp->pixel_wand);
break;
case GMAGICK_COLOR_RED:
color_value = PixelGetRed(internp->pixel_wand);
break;
case GMAGICK_COLOR_YELLOW:
color_value = PixelGetYellow(internp->pixel_wand);
break;
case GMAGICK_COLOR_MAGENTA:
color_value = PixelGetMagenta(internp->pixel_wand);
break;
case GMAGICK_COLOR_OPACITY:
color_value = PixelGetOpacity(internp->pixel_wand);
break;
default:
GMAGICK_THROW_GMAGICKPIXEL_EXCEPTION(internp->pixel_wand, "Unknown color type");
break;
}
RETVAL_DOUBLE(color_value);
}
/**
* Extracts from a binary image white points and consider them as information
* filling sample array and setting size structure.
*
* NOTE: When extracting points origin is moved to the center of the image:
*
* +semi_height
* Image Origin
* +-----------|
* | |
* | |
* | | Hough Origin
* -semi_width ------------+------------- +semi_width
* |
* |
* |
* |
*
* -semi_height
*/
sizep_t get_points(char* name, POINT_TYPE **sample, SIZE_TYPE *size) {
MagickWand *mw = NULL;
PixelWand **pmw = NULL;
PixelIterator *imw = NULL;
MagickWandGenesis();
mw = NewMagickWand();
MagickReadImage(mw, name);
unsigned long width, semi_width, height, semi_height;
width = MagickGetImageWidth(mw);
semi_width = ceil(width/2.0);
height = MagickGetImageHeight(mw);
semi_height = ceil(height/2.0);
imw = NewPixelIterator(mw);
sizep_t count = 0;
POINT_TYPE *aux = (POINT_TYPE*) malloc(sizeof(POINT_TYPE)*width*height);
// Extract white points
int y, x;
for (y=0; y<height; y++) {
pmw = PixelGetNextIteratorRow(imw, &width);
for (x=0; x< (long) width; x++) {
if (PixelGetBlack(pmw[x])) {
aux[count].x = x-semi_width;
aux[count].y = (height-y)-semi_height;
count++;
}
}
}
POINT_TYPE* output = (POINT_TYPE*) malloc(sizeof(POINT_TYPE)*count);
memcpy(output, aux, sizeof(POINT_TYPE)*count);
free(aux); aux = NULL;
if(mw)
mw = DestroyMagickWand(mw);
MagickWandTerminus();
(*sample) = output;
size->width = width;
size->height = height;
return count;
}
/* {{{ proto float ImagickPixel::getColorValue(int color)
Gets the normalized value of a color in the ImagickPixel.
*/
PHP_METHOD(imagickpixel, getcolorvalue)
{
php_imagick_color_t color_enum;
php_imagickpixel_object *internp;
im_long color;
double color_value = 0;
/* Parse parameters given to function */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &color) == FAILURE) {
return;
}
internp = Z_IMAGICKPIXEL_P(getThis());
if (color <= PHP_IMAGICK_COLOR_MIN || color >= PHP_IMAGICK_COLOR_MAX) {
php_imagick_throw_exception (IMAGICKPIXEL_CLASS, "Unknown color type" TSRMLS_CC);
return;
}
color_enum = color;
switch (color_enum) {
case PHP_IMAGICK_COLOR_BLACK:
color_value = PixelGetBlack(internp->pixel_wand);
break;
case PHP_IMAGICK_COLOR_BLUE:
color_value = PixelGetBlue(internp->pixel_wand);
break;
case PHP_IMAGICK_COLOR_CYAN:
color_value = PixelGetCyan(internp->pixel_wand);
break;
case PHP_IMAGICK_COLOR_GREEN:
color_value = PixelGetGreen(internp->pixel_wand);
break;
case PHP_IMAGICK_COLOR_RED:
color_value = PixelGetRed(internp->pixel_wand);
break;
case PHP_IMAGICK_COLOR_YELLOW:
color_value = PixelGetYellow(internp->pixel_wand);
break;
case PHP_IMAGICK_COLOR_MAGENTA:
color_value = PixelGetMagenta(internp->pixel_wand);
break;
#if MagickLibVersion < 0x700
case PHP_IMAGICK_COLOR_OPACITY:
color_value = PixelGetOpacity(internp->pixel_wand);
break;
#endif
case PHP_IMAGICK_COLOR_ALPHA:
color_value = PixelGetAlpha(internp->pixel_wand);
break;
#if MagickLibVersion > 0x628
case PHP_IMAGICK_COLOR_FUZZ:
color_value = PixelGetFuzz(internp->pixel_wand);
break;
#endif
default:
php_imagick_throw_exception (IMAGICKPIXEL_CLASS, "Unknown color type" TSRMLS_CC);
return;
break;
}
RETVAL_DOUBLE(color_value);
}
/* {{{ proto float ImagickPixel::getColorValue(int color)
Gets the normalized color of the ImagickPixel.
*/
PHP_METHOD(imagickpixel, getcolorvalue)
{
php_imagickpixel_object *internp;
long color;
double color_value = 0;
/* Parse parameters given to function */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &color) == FAILURE) {
return;
}
internp = (php_imagickpixel_object *)zend_object_store_get_object(getThis() TSRMLS_CC);
switch (color) {
case IMAGICKCOLORBLACK:
color_value = PixelGetBlack(internp->pixel_wand);
break;
case IMAGICKCOLORBLUE:
color_value = PixelGetBlue(internp->pixel_wand);
break;
case IMAGICKCOLORCYAN:
color_value = PixelGetCyan(internp->pixel_wand);
break;
case IMAGICKCOLORGREEN:
color_value = PixelGetGreen(internp->pixel_wand);
break;
case IMAGICKCOLORRED:
color_value = PixelGetRed(internp->pixel_wand);
break;
case IMAGICKCOLORYELLOW:
color_value = PixelGetYellow(internp->pixel_wand);
break;
case IMAGICKCOLORMAGENTA:
color_value = PixelGetMagenta(internp->pixel_wand);
break;
case IMAGICKCOLOROPACITY:
color_value = PixelGetOpacity(internp->pixel_wand);
break;
case IMAGICKCOLORALPHA:
color_value = PixelGetAlpha(internp->pixel_wand);
break;
#if MagickLibVersion > 0x628
case IMAGICKCOLORFUZZ:
color_value = PixelGetFuzz(internp->pixel_wand);
break;
#endif
default:
php_imagick_throw_exception (IMAGICKPIXEL_CLASS, "Unknown color type" TSRMLS_CC);
return;
break;
}
RETVAL_DOUBLE(color_value);
}