MATLAB实现代码完成GUI界面通过阀值法对红苹果图片进行目标与背景的分割,提取特征参数,标定圆度和直径特征
时间: 2024-04-13 14:27:08 浏览: 140
以下是一个示例的MATLAB代码,实现了GUI界面通过阈值法对红苹果图片进行目标与背景的分割,并提取特征参数(圆度和直径):
```matlab
function appleSegmentationGUI()
% 创建GUI界面
fig = figure('Position',[200,200,400,400]);
btnLoadImage = uicontrol('Style', 'pushbutton', 'String', '选择图片',...
'Position', [150, 350, 100, 30], 'Callback', @btnLoadImageCallback);
btnSegmentation = uicontrol('Style', 'pushbutton', 'String', '分割',...
'Position', [150, 300, 100, 30], 'Callback', @btnSegmentationCallback);
txtCircularity = uicontrol('Style', 'text', 'Position', [20, 250, 100, 20]);
txtDiameter = uicontrol('Style', 'text', 'Position', [20, 220, 100, 20]);
axImage = axes('Units','pixels','Position',[50,50,300,150]);
% 图片选择回调函数
function btnLoadImageCallback(~, ~)
[fileName, filePath] = uigetfile({'*.jpg;*.png','图像文件 (*.jpg,*.png)'});
if fileName ~= 0
img = imread(fullfile(filePath, fileName));
imshow(img, 'Parent', axImage);
end
end
% 图像分割回调函数
function btnSegmentationCallback(~, ~)
if exist('img','var')
% 将图像转为灰度图
grayImg = rgb2gray(img);
% 阈值分割
threshold = graythresh(grayImg);
binaryImg = imbinarize(grayImg, threshold);
% 去除小的噪点
binaryImg = bwareaopen(binaryImg, 100);
% 显示分割结果
imshow(binaryImg, 'Parent', axImage);
% 提取特征参数
stats = regionprops(binaryImg, 'Area', 'Perimeter');
area = [stats.Area];
perimeter = [stats.Perimeter];
% 计算圆度和直径
circularity = (4 * pi * area) ./ (perimeter.^2);
diameter = sqrt(4 * area / pi);
% 显示特征参数
set(txtCircularity, 'String', ['圆度:', num2str(circularity)]);
set(txtDiameter, 'String', ['直径:', num2str(diameter)]);
else
warndlg('请先选择图片!', '警告');
end
end
end
```
您可以将以上代码保存为一个.m文件,在MATLAB中运行该文件即可打开GUI界面。通过点击"选择图片"按钮选择要处理的红苹果图片,然后点击"分割"按钮进行目标与背景的分割,并提取特征参数。分割结果将显示在界面上,特征参数(圆度和直径)将显示在对应的文本框中。
请注意,以上代码仅为示例,您可以根据实际需求进行修改和优化。
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