MocrModifyFont

Filters
See also

User Guide:

OCR font Steps to reading or verifying a string in an image

Reference:

MocrAllocFont MocrControl

Availability

Not available in MIL-Lite

Available in MIL

Available on Windows

Available on Linux

Available on Non-Matrox computer

Available on Matrox 4Sight-X

Available on Matrox 4Sight GP/GPm

Available on Matrox Supersight

Function map

Examples

None.

Function Map

- Operation

Table:

For specifying the type of operation

- OperationFlag

Table:

For specifying the interpoaltion mode

Compilation information

Synopsis

Invert or resize the font of an OCR font context to match the target image characters.

Syntax

void MocrModifyFont(

MIL_ID FontContextOcrId,	//in
MIL_INT64 Operation,	//in
MIL_INT64 OperationFlag	//in

)

Description

This function physically modifies the polarity and sizing of the font of an OCR font context.

Note that this function reference has not been updated for a MIL system added during a MIL update. Refer to the MIL system's release note to see if there is complementary information.

Parameters

This function is not supported on the selected boards.

Parameters

FontContextOcrId

Specifies the identifier of the OCR font context to modify.

Operation

Specifies the type of operation to perform. This parameter can be set to one or more of the following values:

For specifying the type of operation
Value	Description
M_INVERT	Physically inverts the character representation of the font (for example, if the foreground is white, this will change it to black).
M_RESIZE	Scales the font. This operation physically changes the size of the characters of the font to match the target character size (M_TARGET_CHAR_SIZE_X and M_TARGET_CHAR_SIZE_Y). Once performed, all of the font's specifications, which were set at allocation (MocrAllocFont()), are modified to this new size. Note that changing the size of the font permanently in the OCR font context can save time when compared to resizing the font before each read/verify operation. Increasing the size of the font might be slower because the resize time might be less than the additional processing time required during a read or verify operation to find characters of a larger font. (summarize) Scales the font. (more details...)

OperationFlag

Specifies the interpolation mode for the function. This parameter can be set to one of the following:

For specifying the interpoaltion mode
Value	Description
M_DEFAULT	Same as M_BILINEAR. Note that if the Operation parameter is set to M_INVERT, this parameter should be set to M_DEFAULT. No interpolation is done with M_INVERT. (summarize) Same as M_BILINEAR. (more details...)
M_BICUBIC	Sets the interpolation mode to bicubic interpolation.
M_BILINEAR	Sets the interpolation mode to bilinear interpolation.
M_NEAREST_NEIGHBOR	Sets the interpolation mode to nearest neighbor interpolation.

Compilation information

Header	Include mil.h.
Library	Use mil.lib; milocr.lib.
DLL	Requires mil.dll; milocr.dll.