Introduction - If you have any usage issues, please Google them yourself
ch10_1_1: the use of function imfilter realize image filtering (§ 10.1.3) ch10_2_1: use of frequency transformation method to generate a 2-D filters (§ 10.2.2) ch10_2_2: the use of the frequency sampling method to generate a 2-D filter (§ 10.2. 3) ch10_2_3: use the window method to generate a 2-D filters (§ 10.2.4) ch10_2_4: to design a cut-off frequency of 0.5 the ideal low-pass filter (§ 10.2.5)