How can I convert Binary image to 2D binary matrix
显示 更早的评论
I convert an image to binary image, but can't convert binary image to binary matrix.
I have the code so far,
[X,map]= imread('E:/8SEM/PROJECT_ALOK_SIR/picture/t1000.jpg');
BW = im2bw(X,map,0.3);
imshow(X,map), figure, %if we don't use figure we can't see the two images
imshow(BW)
1 个评论
Walter Roberson
2013-3-25
jpeg file format cannot store indexed (pseudocolor) images, so the map will always be empty for a jpg file.
采纳的回答
Image Analyst
2013-3-25
What is the problem, if any? Get rid of map in both statements. Then, does it not display or something? Or does it display all black or all white? If so, you might have chosen the wrong threshold. Try something other than 0.3, or try the graythresh() function.
fullFileName = 'E:/8SEM/PROJECT_ALOK_SIR/picture/t1000.jpg';
if exist(fullFileName, 'file')
rgbImage = imread(fullFileName);
binaryImage = im2bw(rgbImage, 0.3);
subplot(1, 2, 1);
imshow(rgbImage)
subplot(1, 2, 2);
imshow(binaryImage);
else
errorMessage = sprintf('Image file does not exist:\n%s', fullFileName);
uiwait(warndlg(errorMessage));
end
更多回答（2 个）
Walter Roberson
2013-3-25
0 个投票
A binary image stored in memory is a binary matrix.
类别
在 帮助中心 和 File Exchange 中查找有关 Convert Image Type 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
