Apparatus and method for enhancing a whiteboard image

A control apparatus that performs image processing, the control apparatus comprising:

• one or more processors;
• and
• one or more memories storing instructions that, when executed, configures the one or more processors, to:
• receive a captured video from a camera capturing a meeting room;
• extract and store a predefined region of the video as extracted image data;
• generate a first corrected image by performing first image correction processing on the extracted image data to filter out noise;
• generate a second corrected image by using an average first corrected images stored in a first temporal queue including previously generated first corrected image and extracting one or more regions of the average first corrected images indicative of a current motion boundary in the exacted image data;
• combining the extracted one or more regions with the first corrected image to generate the second corrected image by replacing one or more regions of the current motion boundary in the first corrected image with data from the extracted one or more regions;
• generate a binary mask of the second corrected image, the binary mask having a region indicative of motion corresponding to the current motion boundary region replaced by an average of a predetermined number of binary masks stored in a second temporal queue of binary masks;
• generate a filtered image based on the binary mask of the second corrected image and the second corrected image;
• generate a third corrected image by performing second image correction processing on the filtered image;
• and
• perform alpha blending processing that combines the third corrected image with the first corrected image to generate a final corrected image.