Abstract: A projection apparatus and a keystone correction method thereof are provided. The projection apparatus includes a display processing circuit including an image processing circuit, a first keystone correction circuit, a rotation circuit, a second keystone correction circuit, and a video output circuit. The first keystone correction circuit performs first keystone correction processing on a processed image frame based on horizontal scaling processing to obtain a first corrected image frame. The rotation circuit performs rotation processing on the first corrected image frame to write a rotated image frame into a memory. The second keystone correction circuit reads the rotated image frame from the memory and performs second keystone correction processing on the rotated image frame based on the horizontal scaling processing to obtain a second corrected image frame. The video output circuit transmits the second corrected image frame to a projection module through a data transmission interface.

Abstract: A projection apparatus and a keystone correction method thereof are provided. The projection apparatus includes a display processing circuit including an image processing circuit, a first keystone correction circuit, a rotation circuit, a second keystone correction circuit, and a video output circuit. The first keystone correction circuit performs first keystone correction processing on a processed image frame based on horizontal scaling processing to obtain a first corrected image frame. The rotation circuit performs rotation processing on the first corrected image frame to write a rotated image frame into a memory. The second keystone correction circuit reads the rotated image frame from the memory and performs second keystone correction processing on the rotated image frame based on the horizontal scaling processing to obtain a second corrected image frame. The video output circuit transmits the second corrected image frame to a projection module through a data transmission interface.

Abstract: An image processing device and an image processing method are provided. A frame divider divides an original frame into a plurality of divided blocks. A multi-core circuit coupled to the frame divider and includes a plurality of processing cores and a frame stitching circuit. The processing cores perform an image processing process on the divided blocks to generate a plurality of processed frame blocks. The frame stitching circuit performs an image stitching process according to the processed frame blocks to generate a processed frame. The processing cores fetch the divided blocks and a plurality of extension pixels extending from the divided blocks to perform the image processing process, and a column number of the extension pixels is configured according to a window size requested by at least one window algorithm of the image processing process.

Abstract: An image processing device and an image processing method are provided. A frame divider divides an original frame into a plurality of divided blocks. A multi-core circuit coupled to the frame divider and includes a plurality of processing cores and a frame stitching circuit. The processing cores perform an image processing process on the divided blocks to generate a plurality of processed frame blocks. The frame stitching circuit performs an image stitching process according to the processed frame blocks to generate a processed frame. The processing cores fetch the divided blocks and a plurality of extension pixels extending from the divided blocks to perform the image processing process, and a column number of the extension pixels is configured according to a window size requested by at least one window algorithm of the image processing process.