Info

此问题已关闭。 请重新打开它进行编辑或回答。

I have a project concerning a grayscale picture

1 次查看（过去 30 天）
Tiisetso
Tiisetso 2016-5-3
关闭： MATLAB Answer Bot 2021-8-20
here's the question about the attached picture:
''Consider the image below. Discuss thoroughly what is wrong with this image. Then make some plans to address these mistakes/problems''

请先登录，再回答此问题。

回答（2 个）

Walter Roberson
Walter Roberson 2016-5-4
The answer is that the mistake was in creating a JPEG lossy image. JPEG effectively does a kind of anti-aliasing that makes image analysis difficult. The cure is to go back and re-take the picture using a lossless image format.
  2 个评论
Tiisetso
Tiisetso 2016-5-4
Thank you But the plans to address the problem have to be in Matlab language
Walter Roberson
Walter Roberson 2016-5-4
Here then:
filename = 'twoguys.jpg';
[~,~,ext] = fileparts(filename);
if ismember(lower(ext), {'jpg', 'jpeg'})
error('Go back and retake the picture using a lossless compression like TIFF or RAW');
end
CS Researcher
CS Researcher 2016-5-4
The image has the salt and pepper noise. You can remove it using medfilt2 (Image Processing Toolbox)

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by