int raster(MagickWand *image_wand, char **outBuffer) { char *localPointer; PixelIterator *iterator; PixelWand **pixels; register long x; long y; unsigned long columns, rows; int bufcnt = 0; /* * allocate buffer */ columns = MagickGetImageHeight(image_wand); rows = MagickGetImageWidth(image_wand); fprintf(stderr,"Image size : %ldx%ld\n", columns, rows); int outSize = 9 * rows * columns * sizeof(char); localPointer = (char*) malloc(outSize); if (localPointer == NULL) { perror("malloc"); return 0; } /* * convert wand into a buffer */ iterator = NewPixelIterator(image_wand); if (iterator == (PixelIterator *) NULL) ThrowWandException(image_wand); for (y = 0; y < (long) columns; y++) { pixels = PixelGetNextIteratorRow(iterator, &rows); if (pixels == (PixelWand **) NULL) break; for (x = 0; x < (long) rows; x++) bufcnt += sprintf(localPointer + bufcnt, "defb &%2.2X\n", cpc2raster(pixel2cpc(pixels[x]))); } if (y < (long) columns) ThrowWandException(image_wand); iterator = DestroyPixelIterator(iterator); image_wand = DestroyMagickWand(image_wand); MagickWandTerminus(); *outBuffer = localPointer; return bufcnt; }
uint64_t dhash_compute_internal(MagickWand* magick_wand, dhash_err* error) { MagickBooleanType status; PixelWand** pixels; size_t width; size_t pos = 0; uint64_t hash = 0; // Resize status = MagickResizeImage(magick_wand, 9, 8, LanczosFilter, 1.0); if (status == MagickFalse) { set_mw_err(magick_wand, error); return 0; } // Transform to grayscale status = MagickTransformImageColorspace(magick_wand, GRAYColorspace); if (status == MagickFalse) { set_mw_err(magick_wand, error); return 0; } PixelIterator* iterator = NewPixelIterator(magick_wand); if (iterator == NULL) { set_mw_err(magick_wand, error); return 0; } for (size_t y = 0; y < MagickGetImageHeight(magick_wand); y++) { pixels = PixelGetNextIteratorRow(iterator, &width); if (pixels == NULL) { break; } for (size_t x = 0; x < width - 1; x++) { double lbright = PixelGetRed(pixels[x]); double rbright = PixelGetRed(pixels[x + 1]); if (lbright > rbright) { addOneBit(&hash, pos); } pos++; } } iterator = DestroyPixelIterator(iterator); error->err_type = OK; return hash; }
int main(int argc,char **argv) { #define ThrowAPIException(wand) \ { \ description=MagickGetException(wand,&severity); \ (void) FormatLocaleFile(stderr,"%s %s %lu %s\n",GetMagickModule(), \ description); \ description=(char *) MagickRelinquishMemory(description); \ exit(-1); \ } static char CustomOption[] = "custom option", CustomProperty[] = "custom profile"; static unsigned char sRGBProfile[] = { 0x00, 0x00, 0x0c, 0x48, 0x4c, 0x69, 0x6e, 0x6f, 0x02, 0x10, 0x00, 0x00, 0x6d, 0x6e, 0x74, 0x72, 0x52, 0x47, 0x42, 0x20, 0x58, 0x59, 0x5a, 0x20, 0x07, 0xce, 0x00, 0x02, 0x00, 0x09, 0x00, 0x06, 0x00, 0x31, 0x00, 0x00, 0x61, 0x63, 0x73, 0x70, 0x4d, 0x53, 0x46, 0x54, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x43, 0x20, 0x73, 0x52, 0x47, 0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf6, 0xd6, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0xd3, 0x2d, 0x48, 0x50, 0x20, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 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0x58, 0xf0, 0xe5, 0xf1, 0x72, 0xf1, 0xff, 0xf2, 0x8c, 0xf3, 0x19, 0xf3, 0xa7, 0xf4, 0x34, 0xf4, 0xc2, 0xf5, 0x50, 0xf5, 0xde, 0xf6, 0x6d, 0xf6, 0xfb, 0xf7, 0x8a, 0xf8, 0x19, 0xf8, 0xa8, 0xf9, 0x38, 0xf9, 0xc7, 0xfa, 0x57, 0xfa, 0xe7, 0xfb, 0x77, 0xfc, 0x07, 0xfc, 0x98, 0xfd, 0x29, 0xfd, 0xba, 0xfe, 0x4b, 0xfe, 0xdc, 0xff, 0x6d, 0xff, 0xff }; char *description, **options, **profiles, **properties; const char *option, *property; DrawingWand *drawing_wand; ExceptionType severity; MagickWand *clone_wand, *magick_wand; PixelIterator *iterator; PixelWand *background, *border, *fill, **pixels; register ssize_t i; unsigned char *profile; unsigned int status; size_t columns, delay, length, number_options, number_profiles, number_properties, number_wands, rows; (void) argc; (void) argv; MagickWandGenesis(); magick_wand=NewMagickWand(); (void) MagickSetSize(magick_wand,640,480); (void) MagickGetSize(magick_wand,&columns,&rows); if ((columns != 640) || (rows != 480)) { (void) FormatLocaleFile(stderr,"Unexpected magick wand size\n"); exit(1); } (void) FormatLocaleFile(stdout,"Reading images...\n"); { char *p, path[MaxTextExtent]; path[0]=0; p=getenv("SRCDIR"); if (p != (char *) NULL) { (void) strcpy(path,p); if (path[strlen(path)-1] != '/') (void) strcat(path,"/"); } (void) strcat(path,"sequence.miff"); status=MagickReadImage(magick_wand,path); } if (status == MagickFalse) ThrowAPIException(magick_wand); if (MagickGetNumberImages(magick_wand) != 5) (void) FormatLocaleFile(stderr,"read %.20g images; expected 5\n", (double) MagickGetNumberImages(magick_wand)); (void) FormatLocaleFile(stdout,"Iterate forward...\n"); MagickResetIterator(magick_wand); while (MagickNextImage(magick_wand) != MagickFalse) (void) FormatLocaleFile(stdout,"index %.20g scene %.20g\n",(double) MagickGetIteratorIndex(magick_wand),(double) MagickGetImageScene(magick_wand)); (void) FormatLocaleFile(stdout,"Iterate reverse...\n"); while (MagickPreviousImage(magick_wand) != MagickFalse) (void) FormatLocaleFile(stdout,"index %.20g scene %.20g\n",(double) MagickGetIteratorIndex(magick_wand),(double) MagickGetImageScene(magick_wand)); (void) FormatLocaleFile(stdout,"Remove scene 1...\n"); (void) MagickSetIteratorIndex(magick_wand,1); clone_wand=MagickGetImage(magick_wand); status=MagickRemoveImage(magick_wand); if (status == MagickFalse) ThrowAPIException(magick_wand); MagickResetIterator(magick_wand); while (MagickNextImage(magick_wand) != MagickFalse) (void) FormatLocaleFile(stdout,"index %.20g scene %.20g\n",(double) MagickGetIteratorIndex(magick_wand),(double) MagickGetImageScene(magick_wand)); (void) FormatLocaleFile(stdout,"Insert scene 1 back in sequence...\n"); (void) MagickSetIteratorIndex(magick_wand,0); status=MagickAddImage(magick_wand,clone_wand); if (status == MagickFalse) ThrowAPIException(magick_wand); MagickResetIterator(magick_wand); while (MagickNextImage(magick_wand) != MagickFalse) (void) FormatLocaleFile(stdout,"index %.20g scene %.20g\n",(double) MagickGetIteratorIndex(magick_wand),(double) MagickGetImageScene(magick_wand)); (void) FormatLocaleFile(stdout,"Set scene 2 to scene 1...\n"); (void) MagickSetIteratorIndex(magick_wand,2); status=MagickSetImage(magick_wand,clone_wand); clone_wand=DestroyMagickWand(clone_wand); if (status == MagickFalse) ThrowAPIException(magick_wand); MagickResetIterator(magick_wand); while (MagickNextImage(magick_wand) != MagickFalse) (void) FormatLocaleFile(stdout,"index %.20g scene %.20g\n",(double) MagickGetIteratorIndex(magick_wand),(double) MagickGetImageScene(magick_wand)); (void) FormatLocaleFile(stdout,"Apply image processing options...\n"); status=MagickCropImage(magick_wand,60,60,10,10); if (status == MagickFalse) ThrowAPIException(magick_wand); MagickResetIterator(magick_wand); background=NewPixelWand(); status=PixelSetColor(background,"#000000"); if (status == MagickFalse) ThrowAPIException(magick_wand); status=MagickRotateImage(magick_wand,background,90.0); if (status == MagickFalse) ThrowAPIException(magick_wand); border=NewPixelWand(); (void) PixelSetColor(background,"green"); (void) PixelSetColor(border,"black"); status=MagickFloodfillPaintImage(magick_wand,CompositeChannels,background, 0.01*QuantumRange,border,0,0,MagickFalse); if (status == MagickFalse) ThrowAPIException(magick_wand); background=DestroyPixelWand(background); border=DestroyPixelWand(border); drawing_wand=NewDrawingWand(); (void) PushDrawingWand(drawing_wand); (void) DrawRotate(drawing_wand,45); (void) DrawSetFontSize(drawing_wand,18); fill=NewPixelWand(); (void) PixelSetColor(fill,"green"); (void) DrawSetFillColor(drawing_wand,fill); fill=DestroyPixelWand(fill); (void) DrawAnnotation(drawing_wand,15,5,(const unsigned char *) "Magick"); (void) PopDrawingWand(drawing_wand); (void) MagickSetIteratorIndex(magick_wand,1); status=MagickDrawImage(magick_wand,drawing_wand); if (status == MagickFalse) ThrowAPIException(magick_wand); status=MagickAnnotateImage(magick_wand,drawing_wand,70,5,90,"Image"); if (status == MagickFalse) ThrowAPIException(magick_wand); drawing_wand=DestroyDrawingWand(drawing_wand); { unsigned char pixels[27], primary_colors[27] = { 0, 0, 0, 0, 0, 255, 0, 255, 0, 0, 255, 255, 255, 255, 255, 255, 0, 0, 255, 0, 255, 255, 255, 0, 128, 128, 128, }; (void) MagickSetIteratorIndex(magick_wand,2); status=MagickImportImagePixels(magick_wand,10,10,3,3,"RGB",CharPixel, primary_colors); if (status == MagickFalse) ThrowAPIException(magick_wand); status=MagickExportImagePixels(magick_wand,10,10,3,3,"RGB",CharPixel, pixels); if (status == MagickFalse) ThrowAPIException(magick_wand); for (i=0; i < 9; i++) if (pixels[i] != primary_colors[i]) { (void) FormatLocaleFile(stderr, "Get pixels does not match set pixels\n"); exit(1); } } (void) MagickSetIteratorIndex(magick_wand,3); status=MagickResizeImage(magick_wand,50,50,UndefinedFilter,1.0); if (status == MagickFalse) ThrowAPIException(magick_wand); MagickResetIterator(magick_wand); while (MagickNextImage(magick_wand) != MagickFalse) { (void) MagickSetImageDepth(magick_wand,8); (void) MagickSetImageCompression(magick_wand,RLECompression); } MagickResetIterator(magick_wand); (void) MagickSetIteratorIndex(magick_wand,4); (void) FormatLocaleFile(stdout, "Utilitize pixel iterator to draw diagonal...\n"); iterator=NewPixelIterator(magick_wand); if (iterator == (PixelIterator *) NULL) ThrowAPIException(magick_wand); pixels=PixelGetNextIteratorRow(iterator,&number_wands); for (i=0; pixels != (PixelWand **) NULL; i++) { (void) PixelSetColor(pixels[i],"#224466"); (void) PixelSyncIterator(iterator); pixels=PixelGetNextIteratorRow(iterator,&number_wands); } (void) PixelSyncIterator(iterator); iterator=DestroyPixelIterator(iterator); (void) FormatLocaleFile(stdout,"Write to wandtest_out.miff...\n"); status=MagickWriteImages(magick_wand,"wandtest_out.miff",MagickTrue); if (status == MagickFalse) ThrowAPIException(magick_wand); (void) FormatLocaleFile(stdout, "Change image format from \"MIFF\" to \"GIF\"...\n"); status=MagickSetImageFormat(magick_wand,"GIF"); if (status == MagickFalse) ThrowAPIException(magick_wand); (void) FormatLocaleFile(stdout,"Set delay between frames to %d seconds...\n", WandDelay); status=MagickSetImageDelay(magick_wand,100*WandDelay); if (status == MagickFalse) ThrowAPIException(magick_wand); delay=MagickGetImageDelay(magick_wand); if (delay != (100*WandDelay)) { (void) FormatLocaleFile(stderr,"Get delay does not match set delay\n"); exit(1); } (void) FormatLocaleFile(stdout,"Write to wandtest_out_0.gif...\n"); status=MagickWriteImages(magick_wand,"wandtest_out.gif",MagickTrue); if (status == MagickFalse) ThrowAPIException(magick_wand); (void) FormatLocaleFile(stdout,"Set, list, get, and delete wand option...\n"); status=MagickSetOption(magick_wand,"wand:custom-option",CustomOption); if (status == MagickFalse) ThrowAPIException(magick_wand); option=MagickGetOption(magick_wand,"wand:custom-option"); if ((option == (const char *) NULL) || (strlen(option) != strlen(CustomOption)) || (memcmp(option,CustomOption,strlen(option)) != 0)) { (void) FormatLocaleFile(stderr,"Option does not match\n"); exit(1); } options=MagickGetOptions(magick_wand,"*",&number_options); if (options != (char **) NULL) { for (i=0; i < (ssize_t) number_options; i++) { (void) FormatLocaleFile(stdout," %s\n",options[i]); options[i]=(char *) MagickRelinquishMemory(options[i]); } options=(char **) MagickRelinquishMemory(options); } status=MagickDeleteOption(magick_wand,"wand:custom-option"); if (status == MagickFalse) ThrowAPIException(magick_wand); (void) FormatLocaleFile(stdout, "Set, list, get, and delete wand property...\n"); status=MagickSetImageProperty(magick_wand,"wand:custom-property", CustomProperty); if (status == MagickFalse) ThrowAPIException(magick_wand); property=MagickGetImageProperty(magick_wand,"wand:custom-property"); if ((property == (const char *) NULL) || (strlen(property) != strlen(CustomProperty)) || (memcmp(property,CustomProperty,strlen(property)) != 0)) { (void) FormatLocaleFile(stderr,"Property does not match\n"); exit(1); } properties=MagickGetImageProperties(magick_wand,"*",&number_properties); if (properties != (char **) NULL) { for (i=0; i < (ssize_t) number_properties; i++) { (void) FormatLocaleFile(stdout," %s\n",properties[i]); properties[i]=(char *) MagickRelinquishMemory(properties[i]); } properties=(char **) MagickRelinquishMemory(properties); } status=MagickDeleteImageProperty(magick_wand,"wand:custom-property"); if (status == MagickFalse) ThrowAPIException(magick_wand); (void) FormatLocaleFile(stdout, "Set, list, get, and remove sRGB color profile...\n"); status=MagickSetImageProfile(magick_wand,"sRGB",sRGBProfile, sizeof(sRGBProfile)); if (status == MagickFalse) ThrowAPIException(magick_wand); profile=(unsigned char *) MagickGetImageProfile(magick_wand,"sRGB",&length); if ((profile == (unsigned char *) NULL) || (length != sizeof(sRGBProfile)) || (memcmp(profile,sRGBProfile,length) != 0)) { (void) FormatLocaleFile(stderr,"Profile does not match\n"); exit(1); } profile=(unsigned char *) MagickRelinquishMemory(profile); profiles=MagickGetImageProfiles(magick_wand,"*",&number_profiles); if (profiles != (char **) NULL) { for (i=0; i < (ssize_t) number_profiles; i++) { (void) FormatLocaleFile(stdout," %s\n",profiles[i]); profiles[i]=(char *) MagickRelinquishMemory(profiles[i]); } profiles=(char **) MagickRelinquishMemory(profiles); } profile=(unsigned char *) MagickRemoveImageProfile(magick_wand,"sRGB", &length); if ((profile == (unsigned char *) NULL) || (length != sizeof(sRGBProfile)) || (memcmp(profile,sRGBProfile,length) != 0)) { (void) FormatLocaleFile(stderr,"Profile does not match\n"); exit(1); } profile=(unsigned char *) MagickRelinquishMemory(profile); magick_wand=DestroyMagickWand(magick_wand); (void) FormatLocaleFile(stdout,"Wand tests pass.\n"); return(0); }
xcolor_image_t *image_to_xterm(const char *path) { struct winsize ws; ioctl(0, TIOCGWINSZ, &ws); MagickWand *wand; MagickBooleanType status; MagickPixelPacket pixel; PixelIterator *iterator; PixelWand **pixels; MagickWandGenesis(); wand = NewMagickWand(); status = MagickReadImage(wand, path); if(status == MagickFalse) { exit(EXIT_FAILURE); } int **xterm_colors = NULL; MagickResetIterator(wand); size_t row_width = 0; size_t im_height = 0; size_t im_width = 0; size_t width = 0; size_t height = 0; while(MagickNextImage(wand) != MagickFalse) { // Get the actual width and height of the original image im_height = MagickGetImageHeight(wand); im_width = MagickGetImageWidth(wand); // Calculate the new width and height of the image width = min(im_width, (size_t) ws.ws_col); height = ((im_height * width) / im_width) / 2; MagickAdaptiveResizeImage(wand, width, height); // iterate through all the pixels iterator = NewPixelIterator(wand); if((xterm_colors = calloc(height, sizeof(int *))) == NULL) { perror("calloc"); exit(EXIT_FAILURE); } for(size_t y = 0; y < height; y++) { pixels = PixelGetNextIteratorRow(iterator, &row_width); if(pixels == (PixelWand **) NULL) { break; } if((xterm_colors[y] = calloc(row_width, sizeof(int))) == NULL) { perror("calloc"); exit(EXIT_FAILURE); } for(size_t x = 0; x < row_width; x++) { PixelGetMagickColor(pixels[x], &pixel); int xc = rgb_to_xterm((int)(pixel.red / 255) , (int)(pixel.green / 255), (int)(pixel.blue / 255)); xterm_colors[y][x] = xc; } } iterator = DestroyPixelIterator(iterator); break; } // We don't need imagemagick anymore, shut it down wand = DestroyMagickWand(wand); xcolor_image_t *xcolor_image; if((xcolor_image = malloc(sizeof(xcolor_image_t))) == NULL) { perror("malloc"); exit(EXIT_FAILURE); } xcolor_image->x = row_width; xcolor_image->y = height; xcolor_image->pixels = xterm_colors; return xcolor_image; }
int parseImage(void) { int x,y; MagickBooleanType status; MagickWand *magick_wand; //PixelWand *color; MagickPixelPacket pixel; PixelWand **pixels; MagickWandGenesis(); magick_wand=NewMagickWand(); status=MagickReadImage(magick_wand,"matti.png"); if (status == MagickFalse) printf("ERROR\n"); size_t width=MagickGetImageWidth(magick_wand); size_t height=MagickGetImageHeight(magick_wand); printf("X:%d, Y:%d\n",width, height); int image_width = MAX_WIDTH; int image_height = MAX_HEIGHT; if(width < MAX_WIDTH) image_width=width; if(height < MAX_HEIGHT) image_height=height; // PixelIterator* iterator = NewPixelIterator(magick_wand); //PixelWand **pixels = PixelGetNextIteratorRow(iterator,&number_wands); for (y=0; y < image_height; y++) // for (y=0; y < 1; y++) { pixels=PixelGetNextIteratorRow(iterator,&width); for (x=0; x < image_width; x++) { PixelGetMagickColor(pixels[x],&pixel); //printf("R/G/B %g/%g/%g\n",round(pixel.red),round(pixel.green),round(pixel.blue)); int real_y= image_height-y-1; if (real_y < 0) { real_y = 0; printf("ERRRORRR\n"); } else { /*if (round(pixel.red)==0&&round(pixel.green)==0&&round(pixel.blue)==0) image_in[x][real_y]=255; if (round(pixel.red)<4095) image_in[x][real_y]=255;*/ image_in[x][real_y] = 65535 - round(pixel.red); } } PixelSyncIterator(iterator); } PixelSyncIterator(iterator); iterator=DestroyPixelIterator(iterator); ClearMagickWand(magick_wand); printf("Parsed bitmap\n"); magick_wand=DestroyMagickWand(magick_wand); MagickWandTerminus(); }
int main(int argc, char **argv) { init_context(); int _; if ((_ = parse_arguments(argc, argv))) { return _; } FILE *infile; FILE *outfile; infile = fopen(context.infile, "r"); if (infile == NULL) { fprintf(stderr, "No such file or directory: %s\n", context.infile); return 1; } outfile = fopen(context.outfile, "wb"); if (outfile == NULL) { fprintf(stderr, "Please provide an outfile. See `man kimg` for more details."); return 1; } MagickWand *input; MagickWandGenesis(); input = NewMagickWand(); MagickBooleanType mwstatus = MagickReadImageFile(input, infile); if (mwstatus == MagickFalse) { ExceptionType type; fprintf(stderr, "Error reading image file: %s\n", context.infile); fprintf(stderr, "ImageMagick says: %s\n", MagickGetException(input, &type)); return 1; } unsigned long height, width; unsigned short bytewidth; height = MagickGetImageHeight(input); width = MagickGetImageWidth(input); bytewidth = width / 8; if (width % 8 != 0) { bytewidth++; } if (!context.color) { MagickSetImageType(input, GrayscaleType); MagickSetImageColorspace(input, GRAYColorspace); } uint8_t _version = KIMG_VERSION; uint8_t _format = 0; // TODO: format flags uint16_t _height = (uint16_t)height; uint16_t _width = (uint16_t)width; if (!context.bare) { fwrite("KIMG", 4, 1, outfile); // 0x00: Magic Header fwrite(&_version, 1, 1, outfile); // 0x04: Format Version fwrite(&_format, 1, 1, outfile); // 0x05: Format Flags fwrite(&_height, 2, 1, outfile); // 0x06: Image Height fwrite(&_width, 2, 1, outfile); // 0x08: Image Width // 0x09: Palette/Image Data... } PixelIterator *iter; PixelWand **row; MagickPixelPacket pixel; uint8_t mask, byte; iter = NewPixelIterator(input); unsigned long x, y; for (y = 0; y < height; y++) { mask = 0x80; byte = 0; row = PixelGetNextIteratorRow(iter, &width); for (x = 0; x < width; x++) { PixelGetMagickColor(row[x], &pixel); if (context.color) { // TODO: color support } else { if (pixel.red < 32767) { byte |= mask; } } mask >>= 1; if (mask == 0) { // TODO: build in memory fwrite(&byte, sizeof(uint8_t), 1, outfile); mask = 0x80; byte = 0; } } if (mask != 0x80) { fwrite(&byte, sizeof(uint8_t), 1, outfile); } } iter = DestroyPixelIterator(iter); input = DestroyMagickWand(input); MagickWandTerminus(); fclose(outfile); return 0; }
void convert_row_finish(void *user_data) { DestroyPixelIterator((PixelIterator*)user_data); }
void Resize(MagickWand *imagen, MagickWand *imagen2, int proporcion) { int ancho, largo, factor_conversion; register ssize_t x; size_t width, width2; ssize_t y; int ity, itx, index = 0; MagickPixelPacket pixel, pixel2; PixelIterator *iterator, *iterator2; PixelWand **pixels, **pixels2; PixelWand *bgw1 = NewPixelWand(); factor_conversion = abs(proporcion); if(proporcion >= 0){ ancho = MagickGetImageWidth(imagen)*factor_conversion; largo = MagickGetImageHeight(imagen)*factor_conversion; }else{ ancho = (MagickGetImageWidth(imagen)/factor_conversion)+1; largo = (MagickGetImageHeight(imagen)/factor_conversion)+1; } MagickNewImage(imagen2,ancho,largo,bgw1); iterator = NewPixelIterator(imagen); iterator2 = NewPixelIterator(imagen2); if(proporcion >= 0){ //****************** ITERACION PIXEL POR PIXEL *********************** for (y=0; y < (ssize_t) MagickGetImageHeight(imagen); y++) { pixels = PixelGetNextIteratorRow(iterator,&width); if (pixels == (PixelWand **) NULL) break; for(ity=0; ity < factor_conversion; ity++){ pixels2 = PixelGetNextIteratorRow(iterator2,&width2); for (x=0; x < (ssize_t) width; x++) { PixelGetMagickColor(pixels[x],&pixel); for(itx=0;itx<factor_conversion;itx++){ PixelGetMagickColor(pixels2[factor_conversion*x+itx],&pixel2); pixel2.red = pixel.red; pixel2.green = pixel.green; pixel2.blue = pixel.blue; PixelSetMagickColor(pixels2[factor_conversion*x+itx],&pixel2); } } (void) PixelSyncIterator(iterator2); } (void) PixelSyncIterator(iterator); } //****************************************************************** }else{ //****************** ITERACION PIXEL POR PIXEL *********************** for (y=0; y < (ssize_t) MagickGetImageHeight(imagen); y++) { pixels = PixelGetNextIteratorRow(iterator,&width); if (pixels == (PixelWand **) NULL) break; pixels2 = PixelGetNextIteratorRow(iterator2,&width2); for (x=0; x < (ssize_t) width; x++) { if(x%factor_conversion == 0){ PixelGetMagickColor(pixels[x],&pixel); PixelGetMagickColor(pixels2[index],&pixel2); pixel2.red = pixel.red; pixel2.green = pixel.green; pixel2.blue = pixel.blue; PixelSetMagickColor(pixels2[index],&pixel2); index++; } } index = 0; for(ity=1;ity<factor_conversion;ity++){ pixels = PixelGetNextIteratorRow(iterator,&width); } (void) PixelSyncIterator(iterator2); (void) PixelSyncIterator(iterator); } //****************************************************************** } iterator = DestroyPixelIterator(iterator); iterator = DestroyPixelIterator(iterator2); }
int main(int argc, char **argv) { printf("Hello World\n"); #define QuantumScale ((MagickRealType) 1.0/(MagickRealType) QuantumRange) #define SigmoidalContrast(x) (QuantumRange*(1.0/(1+exp(10.0*(0.5-QuantumScale*x)))-0.0066928509)*1.0092503) #define ThrowWandException(wand)\ {\ char *description;\ ExceptionType\ severity;\ \ description=MagickGetException(wand,&severity);\ (void)fprintf(stderr,"%s %s %lu %s\n",GetMagickModule(),description);\ exit(-1);\ } long y; MagickBooleanType status; MagickPixelPacket pixel; MagickWand *contrast_wand, *image_wand; PixelIterator *contrast_iterator,*iterator; PixelWand **contrast_pixels, **pixels; register long x; unsigned long width; if (argc != 3) { (void)fprintf(stdout,"Usage: %s image sigmoidal-image\n",argv[0]); exit(0); } /* Read an Image */ MagickWandGenesis(); image_wand = NewMagickWand(); status = MagickReadImage(image_wand,argv[1]); if(status == MagickFalse) ThrowWandException(image_wand); contrast_wand = CloneMagickWand(image_wand); /* Sigmoidal non-linearity contrast control. */ iterator = NewPixelIterator(image_wand); contrast_iterator=NewPixelIterator(contrast_wand); if((iterator == (PixelIterator*)NULL) || (contrast_iterator == (PixelIterator*)NULL)) ThrowWandException(image_wand); for(y=0; y<(long)MagickGetImageHeight(image_wand); y++) { pixels = PixelGetNextIteratorRow(iterator,&width); contrast_pixels = PixelGetNextIteratorRow(contrast_iterator,&width); if((pixels==(PixelWand**)NULL) || (contrast_pixels == (PixelWand**)NULL)) break; for(x = 0; x<(long)width; x++) { PixelGetMagickColor(pixels[x],&pixel); pixel.red = SigmoidalContrast(pixel.red); pixel.green = SigmoidalContrast(pixel.green); pixel.blue = SigmoidalContrast(pixel.blue); pixel.index = SigmoidalContrast(pixel.index); PixelSetMagickColor(contrast_pixels[x],&pixel); } (void)PixelSyncIterator(contrast_iterator); } if(y < (long)MagickGetImageHeight(image_wand)) ThrowWandException(image_wand); contrast_iterator = DestroyPixelIterator(contrast_iterator); iterator = DestroyPixelIterator(iterator); image_wand=DestroyMagickWand(image_wand); status = MagickWriteImages(contrast_wand,argv[2],MagickTrue); if(status == MagickFalse) ThrowWandException(image_wand); contrast_wand = DestroyMagickWand(contrast_wand); MagickWandTerminus(); return 0; }