actual size of axes GUI change after uploading IMAGE ASPECT RATIO CHANGE

Question

praveen chandaliya 2017-9-21

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/357667-actual-size-of-axes-gui-change-after-uploading-image-aspect-ratio-change

评论： praveen chandaliya 2017-9-21

error1.PNG

IMAGE ASPECT RATIO CHANGE IMAGE SIZE 1024*768 BUT AFTER UPLOAD SIZE CHANGE ON AXES GUI I HAVE ENCLOSED ERROR SCREEN SHOT.

 [image_file_name,image_file_path ] = uigetfile({'*.jpg';'*.avi'},'Please select Frozen Image or Video');      %;*.png;*.yuv;*.bmp;*.tif'},'Pick a file');
                handles.image_file_name = image_file_name;
                handles.image_file_path = image_file_path;
                [pathstr,name,ext] = fileparts(image_file_name)
                if(strcmp(ext,'.jpg')||strcmp(ext,'.png'))
                    if(isequal(image_file_path,0))
                        msgbox('Please select file');
                        return;
                    end
                    input_image_file = [image_file_path,image_file_name];
                     handles.temp_image_file = input_image_file;
                    handles.input_image_file =input_image_file;
                    % Acquiring Image
                    img =  imread(input_image_file);
                    [width,height] = size(rgb2gray(img));
                     handles.img = img;
                     axes(handles.axes2);
                    imshow(img);
                    drawnow;

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Walter Roberson 2017-9-21

Please post some code so we can see your calls.

praveen chandaliya 2017-9-21

i have upload code

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Answer 1

Walter Roberson 2017-9-21

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/357667-actual-size-of-axes-gui-change-after-uploading-image-aspect-ratio-change#answer_282516

imshow() tends to resize axes in order to match the image aspect ratio.

If you have an axes whose aspect ratio does not happen to match the image, and you want to force the image to fill the entire axes, then you can do that -- but the result will not have square pixels.

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praveen chandaliya 2017-9-21

can you more detail way explain. suppose initial axes size 400*300 after before uploading image (size of image 600*400) after upload image size convert into (300*250 ). i am getting actual axes size . in scree shot you see that the size of axes in white. after upload size go 20 to 30 % reduce .

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