Problem with image processing using edge detection

7 次查看（过去 30 天）
Shahrin Islam
Shahrin Islam 2018-7-27
评论： Shahrin Islam 2018-7-27
I am trying to do image processing using edge detection on several images. But it's working for all the images except the one I cropped and edited. Please help me. I really need to get this done.
  2 个评论
Shahrin Islam
Shahrin Islam 2018-7-27
% Display the original Image image = imread('stop.jpeg'); % Read Colour Image and convert it to a grey level Image myimage = rgb2gray(image); % Apply Sobel Operator % Display only Both Edges sobelhz = edge(myimage,'sobel','both'); imshow(sobelhz,[]); title('Sobel - Both Edges');

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

KALYAN ACHARJYA
KALYAN ACHARJYA 2018-7-27
编辑：KALYAN ACHARJYA 2018-7-27
%Change the file name, save as some different name.
% Close Matlab and Restart it again
% Nothing wrong in the following code
clc; clear all; close all;
% Display the original Image
image=imread('safety night.jpg');
% Read Colour Image and convert it to a grey level Image
myimage=rgb2gray(image);
imshow(myimage);
title('Gray Scale Image');
  1 个评论
Shahrin Islam
Shahrin Islam 2018-7-27
Thanks I will give it a try. Can you please enlighten me on the question following the link - https://www.mathworks.com/matlabcentral/answers/412353-want-to-get-all-outputs-together-as-one-in-image-processing
thanks in advance

请先登录，再进行评论。

更多回答（2 个）

Diwakar Ravichandran
Hi Shahrin,
I tried reproducing the issue,
One thing for you to note in your code is that the name of the image is different in the code. The file is named stopD.jpg, and your code is calling stop.jpeg.
So, that could be one cause of the issue. When I did try to reproduce I got an output which I have attached. Please verify that it is the correct output.
Hope this helps,
Cheers!
  4 个评论
显示 2更早的评论
Shahrin Islam
Shahrin Islam 2018-7-27
% Display the original Image image = imread('safety night.jpg');
% Read Colour Image and convert it to a grey level Image myimage = rgb2gray(image); imshow(myimage); title('Gray Scale Image');
Shahrin Islam
Shahrin Islam 2018-7-27
>> gray Attempt to execute SCRIPT gray as a function: C:\Users\User\Desktop\matlab algorithm\images\new\gray.m
Error in images.internal.imageDisplayValidateParams (line 45) common_args.Map = gray(256);
Error in images.internal.imageDisplayParseInputs (line 78) common_args = images.internal.imageDisplayValidateParams(common_args);
Error in imshow (line 241) images.internal.imageDisplayParseInputs({'Parent','Border','Reduce'},preparsed_varargin{:});
Error in gray (line 6) imshow(myimage); title('Gray Scale Image');

请先登录，再进行评论。

Shahrin Islam
Shahrin Islam 2018-7-27
In first comment I have attached the code and file and in the second comment I mentioned the code error. Please help me.

类别

在 Help Center 和 File Exchange 中查找有关 Convert Image Type 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by