To change the PIV Matlab window size to match your image size, you can use the figure and imshow functions in Matlab.
First, create a new figure window using the figure function:
figure;
Next, load your TIFF image using the imread function:
img = imread('your_image.tif');
Then, display the image in the figure window using the imshow function and set the 'InitialMagnification' property to 'fit' to ensure that the image is displayed at its actual size:
imshow(img, 'InitialMagnification', 'fit');
This should display the image in a figure window that is the same size as the image itself. If the image is still zoomed in, you can try adjusting the 'InitialMagnification' property to a different value, such as '100%'.
Finally, you can use the PIV Matlab functions to analyze the image in the figure window.
