Detection method based on computer image processing and mode recognition and application of detection method

The invention provides a detection method based on computer image processing and mode recognition and application of the detection method. The method includes the steps of firstly, inputting a piece of sample test paper, wherein a standard test paper where answers are written is placed in the place aligned with an image collection camera, collection is conducted through a collection device, a standard test paper image with answers is then obtained, image processing is conducted on the image, the image is divided into a positive sample and a negative sample to be stored in a character recognition base, and standard test paper information is generated; secondly, recognizing the type of the test paper, wherein a sample test paper image where answers are written is obtained according to the method in the first step, and low-resolution matching is conducted on the sample test paper image and the standard test paper image; thirdly, conducting handwritten answer recognition; fourthly, conducting test paper analysis. The method can assist a teacher in correcting handwritten test paper or work and has the advantages of being simple in device, convenient to use and the like compared with a machine-readable test paper marking system; meanwhile, the extra vigor, occupied by machine-readable answer sheet filling in examinations, of students can be eliminated, and the method is particularly suitable for correcting work and test paper of lower-grade students.