MATLAB学习（3）
matlab读取图像并转化为灰度图像
image = imread('C:\Users\Administrator\Desktop\图像降噪\src\original image\100.png');
image = rgb2gray(image);
image = imread('C:\Users\Administrator\Desktop\图像降噪\src\original image\1.bmp');
image = rgb2gray(image);
//% figure ,imshow(image);
//% dlmwrite('filename.txt', image, ',', 0, 0)
//% image = image';
figure ,imshow(image);
fid = fopen('exp.txt','w'); fprintf(fid,'%x ',image); fclose(fid); //%将图像iamge依照十六进制写入exp.txt 文件
fid1 = fopen('exp.txt','r'); varargout = fscanf(fid1, '%x',[256,256]); fclose (fid1);
varargout = uint8(round(varargout)) //%将读取的图像double类型转换为uint8
figure,imshow(varargout),title('show varargout');
fid2 = fopen('exp1.txt','w'); fprintf(fid2,'%d ',image); fclose(fid2); //%将图像iamge依照十 进制写入exp1.txt文件
A =load('exp1.txt'); //%读取exp.txt数据
image2 = zeros(256,256,'uint8');
for i = 1 : 256
for j = 1 : 256
image2(j,i) = A((i-1)*256+j); //%读取一维数组1x65535 到矩阵【256 256】
end
end
figure,imshow(image2),title('show image2');