The ImageGear ImageClean component provides several API functions that allow you to enhance bi-level image support. It includes the ability to clean borders, invert white text, auto-orient image, auto invert black text on a white background, and auto-crop.
This section provides detailed information about the ImageClean component API.
ImageClean functions are designated with the prefix IG_IC_...
| IG_IC_check_for_noise | Checks the image for the number of objects exceeding the size of the specified threshold value. |
| IG_IC_clean_borders | Automatically detects and removes large black regions near the borders of a 1-bit image. |
| IG_IC_clean_borders_ex | Detects and removes large black regions that are placed near the borders of a 1-bit image and have characteristics set by parameters of this function. |
| IG_IC_crop_auto | Automatically crops any white borders from a 1-bit image. |
| IG_IC_invert_black_image | Inverts all pixel values of a 1-bit image in which the percentage of black pixels is higher than the value you assign. |
| IG_IC_invert_white_text | Automatically detects areas of white text on black backgrounds in 1-bit images, and inverts them so that they become black text on white backgrounds. |
| IG_IC_invert_white_text_ex | Automatically detects areas of white text on black backgrounds in 1-bit images and inverts them so that they become black text on white backgrounds. This function scans your entire image and makes adjustments to all areas of white text (on black) that fall within the scope of your settings. |
| IG_IC_orient_auto | Automatically determines the proper orientation of a 1-bit image and rotates the image to the proper orientation. |
| IG_IC_orient_auto_ex | Automatically determines what the proper orientation of a 1-bit image should be and rotates this image to achieve that proper orientation. |
| IG_IC_remove_dot_lines | Automatically detects and removes the dot lines on the 1-bit scanned image. |
| IG_IC_remove_lines | Automatically detects and removes the horizontal and vertical lines on the 1-bit scanned image such as frames and tables. |
| IG_IC_remove_punch_holes | Automatically detects and removes the punch holes on the 1-bit scanned image. |
ImageClean has the following structures:
| AT_IC_DOT_LINE_OPTIONS | Specifies parameters for IG_IC_remove_dot_lines method. |
| AT_IC_LINE_OPTIONS | Specifies parameters for IG_IC_remove_lines method. |
| AT_IC_PUNCH_HOLE_PARAMS | Specifies parameters for IG_IC_remove_punch_holes method. |
ImageClean has the following enumerations:
| enumIGICDirection | Specifies types of object orientations for ImageClean API. |
| enumIGICMethods | Contains modes for the ImageClean Component functions. |
| enumIGICUnits | Specifies types of the measure units used in ImageClean. |