MocrControl

Erases a character from the font of the OCR font context.

Sets whether the space between characters in the target image is read or not.

Note that this is available only when using an M_GENERAL OCR font context. In addtion, blank characters cannot be verified (using MocrVerifyString()) and will cause a MIL error. INQ

Sets the capability to read/verify a broken character. INQ

Sets the acceptance level used to determine a successful match between the font and the characters found within the target image. During a read/verify operation, the character found with the highest match score, either equal to or greater than the acceptance level, will be returned.

If the match score is less than the acceptance level, the result with the highest match score closest to the acceptance level will be returned. If the match score is 0% the invalid character (M_CHAR_INVALID) is returned.

A perfect match is 100%, no correlation is 0%. The match score depends on the image quality. You should experiment to decide what is a typical match score for your application. INQ

Sets the ASCII character for all characters within the selected string or strings during the next read or verify operation whose match scores fall below the character acceptance level. INQ

Changes the type of OCR font context. Note that not all controls are available with both types of OCR font contexts. The restrictions are indicated within each control. When you change the type of OCR font context, invalid controls are replaced by their default value. INQ

Sets whether to still read and identify the string when the image contains more characters than otherwise expected. INQ

Sets the number of iterations of morphological filtering.

Morphological filtering can add robustness to the OCR operation by internally enhancing the contrast of the image, but it requires processing time. The optimal number of iterations depends on the complexity of the target image. INQ

Sets whether to first locate the strings in the target image before trying to identify characters against the OCR font context or to skip this step and save processing time. INQ

Sets the algorithm's search speed. Note that increasing the search speed can decrease the robustness and subpixel accuracy of a read/verify operation. This is most effective on large-sized characters. INQ

Sets the acceptance level used to determine a successful match between the font and a read/verified string. During a read/verify operation, the string found with the highest match score, either equal to or greater than the acceptance level, will be returned.

If the match score is less than the acceptance level, the result with the highest match score closest to the acceptance level will be returned. If the match score is 0%, a blank string is returned. Note that, in this case, MocrGetResult() with M_STRING_VALID_FLAG would be false.

A perfect match is 100%, no correlation is 0%. The match score depends on the image quality. You should experiment to decide what is a typical match score for your application. INQ

Sets the interpolation mode to use when reading/verifying a string at an angle. INQ

Sets the capability to read/verify characters that touch each other in the target image. INQ

Sets the amount by which the position of the characters in the target string can vary along the X-axis. This tolerance is relative to the position of each character, as determined by M_TARGET_CHAR_SPACING. This tolerance increases the region being searched for characters within the target image. INQ

Sets the amount by which the position of the characters in the target string can vary along the Y-axis. This tolerance is relative to the position of each character, as determined by M_TARGET_CHAR_SPACING. This tolerance increases the region being searched for characters within the target image. INQ

Sets the expected angle at which the string can be found. INQ

Sets the possible angle variation in a clockwise rotation, relative to M_STRING_ANGLE. When searching for a string over a range of angles (setting M_STRING_ANGLE_DELTA_POS and/or M_STRING_ANGLE_DELTA_NEG to a value greater than 1°), the font context's character size must be greater than 16x16 to avoid a MIL error when calling MocrReadString(), MocrVerifyString() or MocrCalibrateFont(). INQ

Sets the possible angle variation in a counter-clockwise rotation, relative to M_STRING_ANGLE. When searching for a string over a range of angles (setting M_STRING_ANGLE_DELTA_POS and/or M_STRING_ANGLE_DELTA_NEG to a value greater than 1°), the font context's character size must be greater than 16x16 to avoid a MIL error when calling MocrReadString(), MocrVerifyString() or MocrCalibrateFont(). INQ

Sets the number of strings to be read/verified from the target image. Multiple strings can only be found if each string resides on a different line within the target image and each line of text does not overlap the previous.

Note that, for best results, all strings read in an image with multiple strings should be of similar length, have a consistent inter-line spacing and should start at a similar location along the X-axis. INQ

Sets the length of the string to be read/verified from the target image.

Sets the width of the target characters. Note that this can also be automatically set using MocrCalibrateFont(). INQ

Sets the height of the target characters. Note that this can also be automatically set using MocrCalibrateFont(). INQ

Sets the amount of space between characters in the string. Note that this can also be automatically set using MocrCalibrateFont(). INQ

Sets the ASCII character to be used as a string separator within the text read/verified. This separator will be inserted between each string. Note that this must be set before the text is read/verified. INQ

Sets the number of character thickening iterations.

Each iteration enlarges the thickness of the target character. This is useful for some types of fonts (for example, dotted characters). You should choose a value large enough for the intra character dots to connect but not too large to connect separate characters together.

Note that the characters included in the font should not be dotted. Instead a thickened version should be included. INQ

Sets the threshold value used to internally binarize the target image for segmentation of characters.

Note that this control type is available only when using an M_GENERAL OCR font context. INQ

Sets whether to return results in pixels or world units. This essentially sets the output coordinate system to use. The setting of this control type will only affect functions within this module which return positional results. This control type can be changed at any time to return results in the required output units. INQ

Selects the line of text to return from the result buffer, when multiple lines of text are read/verified. INQ