scale image to 1900x900 in matlab

You can use the imresize function in MATLAB to scale a given image to the desired size.

main.m
img = imread('image.jpg'); % Replace 'image.jpg' with the name of your input image file
resized_img = imresize(img, [900, 1900], 'bicubic'); % Resizing to [900, 1900] using bicubic interpolation
imshow(resized_img); % Display the resized image
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Here, we first read in the input image using imread, and then use the imresize function to resize the image to the desired dimensions of 1900x900. The third argument 'bicubic' specifies the type of interpolation used for resizing.

Finally, we display the resized image using imshow.

Note that resizing an image can result in distortion or loss of detail. The specific type of interpolation used can affect the quality of the resized image.