L_TextBlurDetector

#include "l_bitmap.h"

L_LTIMGCOR_API L_INT L_TextBlurDetector(pBitmap, pNonBlurredBlocks, NonBlurredBlocksCount, pBlurredBlocks, BlurredBlocksCount, CombinedTextBlocks)

pBITMAPHANDLE pBitmap;

pointer to the bitmap handle

L_RECT** pNonBlurredBlocks;

array of in focus blocks

L_INT* NonBlurredBlocksCount;

the number of in focus blocks

L_RECT** pBlurredBlocks;

array of out of focus blocks

L_INT* BlurredBlocksCount;

the number of out of focus blocks

L_RECT* CombinedTextBlocks;

the boundary of text area in the image

Divides an image it into many blocks, and determines whether each block's background in focus or out of focus.

Parameter

Description

pBitmap Pointer to the bitmap handle referencing the bitmap to be divided.
pNonBlurredBlocks Pointer to array of in focus blocks after applying text blur detector.
NonBlurredBlocksCount Pointer to L_INT to be updated with the number of in focus blocks after applying text blur detector.
pBlurredBlocks Pointer to array of out of focus blocks after applying text blur detector.
BlurredBlocksCount Pointer to L_INT to be updated with the number of out of focus blocks after applying text blur detector.
CombinedTextBlocks The boundary of text area in the image, that's isn't a background.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

This function supports 8, 12, 16-bit grayscale images and 24, 32-bit colored images.

Required DLLs and Libraries

LTIMGCOR
File format DLLs

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64, Linux.

Example

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; 
} 

Help Version 20.0.2018.1.19
Products | Support | Contact Us | Copyright Notices
© 1991-2018 LEAD Technologies, Inc. All Rights Reserved.
LEADTOOLS Raster Imaging C API Help