Witryna20 gru 2024 · 离散余弦( DCT)压缩代码: 1) 利用 DCT变换进行图像压缩的 MATLAB程序 : RGB=imread ('1.JPG'); I=rgb2gray (RGB); J=dct2 (I); imshow (log (abs (J), []),colormap (jet (64)),colorbar J (abs (J) K=idct2 (J); figure,imshow (I); figure,imshow (K, [0,255]); 2)利用离散余弦变换进行 JPEG图像压缩 : RGB=imread … Witryna6 maj 2024 · To draw a log-normalized imshow () plot with a colorbar representing the raw data in matplotlib, we can take the following steps −. Create a 2D array using …
编程速记(39):Matlab篇-提取图像高频/低频信息-基于DCT - 代码 …
Witryna13 lut 2014 · imshow (log (abs (J)), []), colormap (jet (64)), colorbar Now set values smaller than 10 in dct matrix to 0 and reconstruct the image using idct. Theme Copy J (abs (J)<10) = 0; K = idct2 (J)/255; imshow (K); Error using rgb2gray>parse_inputs (line 81) MAP must be a m x 3 array. Error in rgb2gray (line 35) X = parse_inputs (varargin … Witryna个人简介:? > 个人主页:赵四司机 > 学习方向:java后端开发? > 种一棵树最好的时间是十年前,其次是现在! greenfield township ohio missing medication
TRANSFORMASI CITRA DENGAN MENGGUNAKAN MATLAB
Witryna31 mar 2024 · 就是把colormap(jet(64))改成了colormap(gca, jet(64)) clc, clear, close all figure (1); grayimg = imread ('grayimg.jpg'); imshow (grayimg); figure (2); B = fftshift … Witryna12 mar 2024 · colorbar('vert') colorbar('horiz') colorbar(h) colorbar h = colorbar(...) 举例 I = imread('blood1.tif'); h = fspecial('log'); I2 = filter2(h,I); imshow(I2,[]), colormap(jet(64)), colorbar 17.conv2 功能:进行二维卷积操作。 语法: C = conv2(A,B) C = conv2(hcol,hrow,A) C = conv2(...,shape) 举例 Witryna18 paź 2013 · imshow (log (abs (J)), []),colormap (jet (64)),colorbar 现在将DCT矩阵中值大小小于10的设为0,然后用逆DCT函数idct2对图像进行重建。 J (abs (J)<10)=0; … greenfield township ohio map