EXOBJ_OPTIONS

L_INT ExObjOptionsExample(L_VOID) 
{ 
   L_INT nRet = SUCCESS; 
 
   BITMAPHANDLE InputBitmap = { 0 }; 
   BITMAPHANDLE OutputBitmap = { 0 }; 
   pEXOBJ_DATA pData = NULL; 
   EXOBJ_OPTIONS ExtractOptions = { 0 }; 
   EXOBJ_COLORINFO ColorInfo[3] = { 0 }; 
   L_TCHAR ColorNames[3][20] = { 0 }; 
   EXOBJ_REGION_OPTIONS RegionOptions = { 0 }; 
   pEXOBJ_OBJECT* pObjectArray = NULL; // Temporary array for L_ExtractObjects_CalcRegion 
   L_UINT uObjectArrayCount = 0; 
 
   // Load the original image 
   nRet = L_LoadBitmap(MAKE_IMAGE_PATH(TEXT("unwarp1.jpg")), &InputBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGRORGRAY, NULL, NULL); 
   if (nRet != SUCCESS) 
      goto cleanup; 
 
   // Setup the extraction options 
   ExtractOptions.uStructSize = sizeof(EXOBJ_OPTIONS); 
   ExtractOptions.uFlags = EXOBJ_8_CONNECTIVITY | EXOBJ_DETECT_CHILDREN | EXOBJ_OUTLINE | EXOBJ_IGNORE_SMALL_NOISE | EXOBJ_USE_MULTICOLORS; 
   ExtractOptions.nSmallNoiseThreshold = 5; // Filter out noise smaller than 5x5 pixels 
   ColorInfo[0].uStructSize = ColorInfo[1].uStructSize = ColorInfo[2].uStructSize = sizeof(EXOBJ_COLORINFO); 
   ColorInfo[0].uThreshold = ColorInfo[1].uThreshold = ColorInfo[2].uThreshold = 50; 
   strcpy_s(ColorNames[0], TEXT("DarkGray")); 
   ColorInfo[0].crColor = RGB(30, 30, 30); 
   strcpy_s(ColorNames[1], TEXT("DarkGreen")); 
   ColorInfo[1].crColor = RGB(41, 108, 70); 
   strcpy_s(ColorNames[2], TEXT("LightRed")); 
   ColorInfo[2].crColor = RGB(200, 68, 65); 
   ExtractOptions.pColorInfo = ColorInfo; 
   ExtractOptions.uColorInfoCount = 3; 
 
   // Extract the objects 
   nRet = L_ExtractObjectsBitmap(&InputBitmap, &ExtractOptions, &pData); 
   if (nRet != SUCCESS) 
      goto cleanup; 
 
   // Determine the total number of objects (braces for scope) 
   { 
      pEXOBJ_RESULT pResultIter; 
 
      for (pResultIter = pData->pHead, uObjectArrayCount = 0; pResultIter != NULL; pResultIter = pResultIter->pNext) 
      { 
         uObjectArrayCount += pResultIter->pObjects->uCount; 
      } 
   } 
 
   // Allocate a new array to hold the objects 
   pObjectArray = (pEXOBJ_OBJECT*)malloc(uObjectArrayCount * sizeof(pEXOBJ_OBJECT)); 
   if (pObjectArray == NULL) 
   { 
      nRet = ERROR_NO_MEMORY; 
      goto cleanup; 
   } 
 
   // Convert the linked list to an array (braces for scope) 
   { 
      pEXOBJ_RESULT pResultIter; 
      L_INT nIndex; 
 
      for (pResultIter = pData->pHead, nIndex = 0; pResultIter != NULL; pResultIter = pResultIter->pNext) 
      { 
         pEXOBJ_OBJECT pObjectIter; 
 
         for (pObjectIter = pResultIter->pObjects->pHead; pObjectIter != NULL; pObjectIter = pObjectIter->pNext, nIndex++) 
            pObjectArray[nIndex] = pObjectIter; 
      } 
   } 
 
   // Setup the region options 
   RegionOptions.uStructSize = sizeof(EXOBJ_REGION_OPTIONS); 
   RegionOptions.uFlags = EXOBJ_REGION_HORIZONTAL; 
 
   // Calculate each object's region 
   nRet = L_ExtractObjects_CalcRegion(pData, pObjectArray, uObjectArrayCount, &RegionOptions); 
   if (nRet != SUCCESS) 
      goto cleanup; 
 
   // Create an output image 
   nRet = L_CreateBitmap(&OutputBitmap, sizeof(BITMAPHANDLE), TYPE_CONV, InputBitmap.Width, InputBitmap.Height, 24, ORDER_BGR, NULL, TOP_LEFT, NULL, 0); 
   if (nRet != SUCCESS) 
      goto cleanup; 
 
   // Extract each color to a separate image (braces for scope) 
   { 
      pEXOBJ_RESULT pResultIter; 
      EXOBJ_COLORINFO* pColorIter; 
      L_INT nNameIndex; 
 
      for (pResultIter = pData->pHead, pColorIter = ColorInfo, nNameIndex = 0; pResultIter != NULL; pResultIter = pResultIter->pNext, pColorIter++, nNameIndex++) 
      { 
         // Fill the output image with white 
         nRet = L_FillBitmap(&OutputBitmap, RGB(255, 255, 255)); 
         if (nRet != SUCCESS) 
            goto cleanup; 
 
         // Populate the output image with each object's region (braces for scope) 
         { 
            pEXOBJ_OBJECT pObjectIter; 
 
            for (pObjectIter = pResultIter->pObjects->pHead; pObjectIter != NULL; pObjectIter = pObjectIter->pNext) 
            { 
               pEXOBJ_SEGMENT pSegmentIter; 
 
               for (pSegmentIter = pObjectIter->pRegionHorizontal->pHead; pSegmentIter != NULL; pSegmentIter = pSegmentIter->pNext) 
               { 
                  // Update the region to the current segment 
                  nRet = L_SetBitmapRgnRect(&OutputBitmap, NULL, &pSegmentIter->rcBounds, L_RGN_SET); 
                  if (nRet != SUCCESS) 
                     goto cleanup; 
 
                  // Fill the region with the current color 
                  nRet = L_FillBitmap(&OutputBitmap, pColorIter->crColor); 
                  if (nRet != SUCCESS) 
                     goto cleanup; 
               } 
            } 
         } 
 
         // Clear the output image's region 
         nRet = L_FreeBitmapRgn(&OutputBitmap); 
         if (nRet != SUCCESS) 
            goto cleanup; 
 
         // Save the output image (braces for scope) 
         { 
            L_TCHAR szOutputFile[MAX_PATH] = { 0 }; 
 
            sprintf_s(szOutputFile, MAKE_IMAGE_PATH(TEXT("ExtractObjectsMultiColors_%s.png")), ColorNames[nNameIndex]); 
            nRet = L_SaveBitmap(szOutputFile, &OutputBitmap, FILE_PNG, 0, 0, NULL); 
            if (nRet != SUCCESS) 
               goto cleanup; 
         } 
      } 
   } 
 
cleanup: 
 
   // Free the loaded images 
   if (InputBitmap.Flags.Allocated) 
      L_FreeBitmap(&InputBitmap); 
   if (OutputBitmap.Flags.Allocated) 
      L_FreeBitmap(&OutputBitmap); 
 
   // Free the results 
   if (pData != NULL) 
      L_ExtractObjects_FreeData(&pData); 
 
   // Free the array 
   if (pObjectArray != NULL) 
      free(pObjectArray); 
 
   return nRet; 
}