| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce load on image restoration processing in a receiving device when transmitting an image.SOLUTION: The dividing section 621 of a PC divides the present screen and the previous screen into 64×64 pixel blocks, and a comparing section 622 makes a comparison for each block. An extracting section 623 extracts, from each block, the smallest rectangular area, as an updated rectangle, which includes a different part. The specifying section 625 specifies, as the entire rectangle, the smallest rectangle including each update rectangle. An image transmitting section 65 transmits image data of the entire rectangle to a smart phone together with information about the entire rectangle and each updated rectangle. In addition, the image processing section of the smart phone extracts each updated rectangular image from received image data based on the entire rectangle and each updated rectangle, and attach it to a screen being displayed. A blackening section 63 blackens parts that have not been updated in the entire rectangular images. An image compressing section 64 JPEG compresses the blacken images. An image transmitting section 65 transmits the JPEG compressed image to the smart phone.</p> |
