IG_IP_deskew_angle

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 );

Arguments:

Name	Type	Description
hIGear	HIGEAR	HIGEAR handle of image.
lpAngle	LPDOUBLE	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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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 );

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.