A Real Time Character Image Enhancement and Interpolation Algorithm for Low-resolution Image Sensor

摘要

As known, the image captured from low-resolution image sensor has worse vision effect. Especially, the character image has blurred strokes, diffused lines as well as lower grey difference with background. In order to identify the character, we should effectively improve the character image resolution and definition by achieving real time character image processing. It is highly important for character image effect to choose proper image processing algorithm. At the same time, the processing progress maybe take too long time to be suitable for real time image processing. Based on analyzing features of character image, a rapid real time character image enhancement and interpolation method is introduced in this paper. The practical result has showed that the character image definition and revolution has been improved by almost double compared to the original image, and the character image stability has been greatly enhanced.