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#1 Posted : Tuesday, October 27, 2009 11:37:08 PM(UTC)

yonjh  
yonjh

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L_FileInfo() function return -10 when it's called with attachment image(Extract_NoRecog.bmp).

And L_Doc2AddPage() function return ERROR_DOC_INV_IMAGE_RESOLUTION.

But the image is loaded without any problem.

How can I fix this problem?

 

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#2 Posted : Tuesday, October 27, 2009 11:41:03 PM(UTC)

yonjh  
yonjh

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I attach the image again.

File Attachment(s):
Extract_NoRecog.zip (5kb) downloaded 19 time(s).
 
#3 Posted : Wednesday, October 28, 2009 7:44:32 AM(UTC)

Basel  
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The error message -10 means 'File Not Found'. Can you please make sure you are giving the same string from your loading function to L_FileInfo()? If there's any error in the file name or the path, such as using one backslash value in the string "\" instead of "\\", the file will not be found.

About the error message 'ERROR_DOC_INV_IMAGE_RESOLUTION', the bitmap has resolution of 72 DPI, which is too low for OCR.
 
#4 Posted : Friday, October 30, 2009 6:30:43 PM(UTC)

yonjh  
yonjh

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What is  the least DPI value for OCR?

 
#5 Posted : Sunday, November 1, 2009 1:03:56 AM(UTC)

Basel  
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The recommended value is 300. But also, this depends on the image's height and width. If you have a very high width/height, you might need more DPI.

For more information, please take a look at the help topic "An Overview of Recognition Modules" in our OCR C DLL help file.

 
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