#include "l_bitmap.h"
L_LTIMGCOR_API L_INT L_TextBlurDetector(pBitmap, pNonBlurredBlocks, NonBlurredBlocksCount, pBlurredBlocks, BlurredBlocksCount, CombinedTextBlocks)
Divides an image it into many blocks, and determines whether each block's background in focus or out of focus.
Pointer to the bitmap handle referencing the bitmap to be divided.
Pointer to array of in focus blocks after applying text blur detector.
Pointer to L_INT to be updated with the number of in focus blocks after applying text blur detector.
Pointer to array of out of focus blocks after applying text blur detector.
Pointer to L_INT to be updated with the number of out of focus blocks after applying text blur detector.
The boundary of text area in the image, that's isn't a background.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
This function supports 8, 12, 16-bit grayscale images and 24, 32-bit colored images.
Required DLLs and Libraries
Win32, x64, Linux.
This example loads a bitmap and applies text blur detector.
L_INT TextBlurDetectorExample(L_VOID)
{
L_INT nRet;
BITMAPHANDLE LeadBitmap; /* Bitmap handle to hold the loaded image. */
/* Load the bitmap, keeping the bits per pixel of the file */
nRet = L_LoadBitmap (MAKE_IMAGE_PATH(TEXT("Barcode.jpg")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL);
if(nRet !=SUCCESS)
return nRet;
/* Apply text blur detector */
L_RECT* pInFocusBlocks = NULL;
L_INT InFocusBlocksCount = 0;
L_RECT* pOutOfFocusBlocks = NULL;
L_INT OutOfFocusBlocksCount = 0;
L_RECT CombinedTextBlocks = {0};
nRet = L_TextBlurDetector(&LeadBitmap, &pInFocusBlocks, &InFocusBlocksCount, &pOutOfFocusBlocks, &OutOfFocusBlocksCount, &CombinedTextBlocks);
L_TextBlurFree(pInFocusBlocks, pOutOfFocusBlocks);
//free bitmap
if(LeadBitmap.Flags.Allocated)
L_FreeBitmap(&LeadBitmap);
return nRet;
}
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