Description: Image manipulation, "2.1.bmp" zoom to 1.5 times the original size, using bilinear interpolation method to enlarge.
"2.1.bmp" around the center of the image counterclockwise rotation of 20 degrees, a bilinear interpolation method. This topic Do not use imresize, and imrotate function, write your own program to complete.
2 of the distortion of the image to be corrected: "2.2.bmp" image after distortion, it is known that the four points on the image of the distortion (118,88) (90,140) (139,168) (168,116) corresponding to distortion prior to the point were to (98,98) (98,158) (158,158) (158,68), with a corresponding point constraint method seeking the image in front of the distortion. (Coordinates in the subject line- column coordinate involves interpolation with bilinear interpolation)
3 using discrete cosine transform the function (dct2, and idct2) "lena.bmp" do the compression, to observe the compression effect.
To Search:
File list (Check if you may need any files):
新建文件夹\t2_1.m
..........\t2_1_2.m
..........\t2_2.m
..........\t2_3.m
..........\t2_4.m
..........\t2_5.m
..........\t2_6.m
..........\t2_7.m
新建文件夹
Download