作业帮急 matlab pcolor函数rgb=imread('I:\临时\1.jpg');figure(1);imshow(rgb);title('彩色图');i1=rgb2gray(rgb);figure(2);imshow(i1);title('灰度图');I=mat2gray(i1);figure(3);imshow(I);title('归一化');[m,n]=size(I);[x,y]=meshgrid(1:n,1:m);figure(
来源：学生作业帮助网 编辑：作业帮 时间：2024/10/05 21:03:52
![急 matlab pcolor函数rgb=imread('I:\临时\1.jpg');figure(1);imshow(rgb);title('彩色图');i1=rgb2gray(rgb);figure(2);imshow(i1);title('灰度图');I=mat2gray(i1);figure(3);imshow(I);title('归一化');[m,n]=size(I);[x,y]=meshgrid(1:n,1:m);figure(](/uploads/image/z/5435920-64-0.jpg?t=%E6%80%A5+matlab+pcolor%E5%87%BD%E6%95%B0rgb%3Dimread%28%27I%3A%5C%E4%B8%B4%E6%97%B6%5C1.jpg%27%29%3Bfigure%281%29%3Bimshow%28rgb%29%3Btitle%28%27%E5%BD%A9%E8%89%B2%E5%9B%BE%27%29%3Bi1%3Drgb2gray%28rgb%29%3Bfigure%282%29%3Bimshow%28i1%29%3Btitle%28%27%E7%81%B0%E5%BA%A6%E5%9B%BE%27%29%3BI%3Dmat2gray%28i1%29%3Bfigure%283%29%3Bimshow%28I%29%3Btitle%28%27%E5%BD%92%E4%B8%80%E5%8C%96%27%29%3B%5Bm%2Cn%5D%3Dsize%28I%29%3B%5Bx%2Cy%5D%3Dmeshgrid%281%3An%2C1%3Am%29%3Bfigure%28)
急 matlab pcolor函数rgb=imread('I:\临时\1.jpg');figure(1);imshow(rgb);title('彩色图');i1=rgb2gray(rgb);figure(2);imshow(i1);title('灰度图');I=mat2gray(i1);figure(3);imshow(I);title('归一化');[m,n]=size(I);[x,y]=meshgrid(1:n,1:m);figure(
急 matlab pcolor函数
rgb=imread('I:\临时\1.jpg');
figure(1);imshow(rgb);title('彩色图');
i1=rgb2gray(rgb);
figure(2);imshow(i1);title('灰度图');
I=mat2gray(i1);
figure(3);imshow(I);title('归一化');
[m,n]=size(I);
[x,y]=meshgrid(1:n,1:m);
figure(4);pcolor(x,y,I);
colorbar
为什么图4出来时黑色的?我真心是菜鸟.
急 matlab pcolor函数rgb=imread('I:\临时\1.jpg');figure(1);imshow(rgb);title('彩色图');i1=rgb2gray(rgb);figure(2);imshow(i1);title('灰度图');I=mat2gray(i1);figure(3);imshow(I);title('归一化');[m,n]=size(I);[x,y]=meshgrid(1:n,1:m);figure(
这是因为,伪彩图的本质是一个surface对象,默认条件下会绘制黑色的网格线,而作为图像数据,网格一般会非常密集,所以看起来就是黑色的.
可以改成：
h=pcolor(x,y,I);
set(h,'edgecolor','none')
或者
pcolor(x,y,I);
shading interp