清空筛选条件
清空筛选条件

How to preprocess this image.?

1 次查看（过去 30 天）
Karthik K
Karthik K 2019-3-28
移动：Rik 2022-12-30
Hello. I am preprocessing the image using convexhull method. Initial and intermediate methods are fine. The last method in displaying preprocessing image I am not getting the required display. I need only the rounded coins to get displayed at the end of preprocessed image without any black pixels. But it is displaying only with white pixel values. Pixel vales are copied properly from the original image(I) to preprocessed Image(PI). I am executing with the following code.
clc;clear;
subplot(2,3,1);
I = imread('coins.png');
imshow(I);
title('Original');
subplot(2,3,2);
BW = imbinarize(I);
imshow(BW);
title('Binary');
subplot(2,3,3);
CH = bwconvhull(BW);
imshow(CH);
title('Union Convex Hull');
subplot(2,3,4);
CH_objects = bwconvhull(BW,'objects');
imshow(CH_objects);
title('Objects Convex Hull');
for a=1:size(I,1)
for b=1:size(I,2)
if(CH_objects(a,b)==0)
PI(a,b)=1;
else
PI(a,b)=I(a,b);
end
end
end
subplot(2,3,5);
imshow(PI);
title('Preprocessed Image');
  1 个评论
S WASIQUE ALI
S WASIQUE ALI 2022-5-6
移动：Rik 2022-12-30
I want to process the backround and foreground separately. For background i want to threshold the Intensity value Intensity value <1 to be zero and rest of the Intensity value should remain unaltered. please help me out with some code

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Catalytic
Catalytic 2019-3-28
编辑：Catalytic 2019-3-28
PI=I;
PI(~CH_objects)=255;
imshow(PI);
title('Preprocessed Image');
Capture.PNG

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Get Started with Image Processing Toolbox 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