This function determines the skew angle of a 1-bit document image.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_IP_deskew_angle_find (
HIGEAR hIGear,
LPDOUBLE lpAngle
);
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Arguments:
| hIGear | HIGEAR handle of image. |
| lpAngle | Far pointer to a DOUBLE variable that will receive the skew angle. |
Return Value:
Returns the number of ImageGear errors that occurred during this function call.
Supported Raster Image Formats:
Indexed RGB – 1 bpp;
Grayscale – 1 bpp.
Sample:
Image Processing
Example:
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HIGEAR hIGear; /* HIGEAR handle of image */ DOUBLE dblDeskewAngle; /* Amount of skew in lpRect returned */ AT_ERRCOUNT nErrcount; /* will tally any IG errors */ nErrcount = IG_IP_deskew_angle_find ( hIGear, &dblDeskewAngle ); |
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Remarks:
The angle is returned via the pointer lpAngle. You may then use the value of lpAngle with IG_IP_rotate_any_angle() function in order to straighten the image.