ImageData of an image section

How can I take the image data of the area around a max?

img = Import["https://i.stack.imgur.com/YDCGF.png"]
markers = MaxDetect[GaussianFilter[img, 10], Padding -> 1]; 
HighlightImage[img, markers, Method -> {"DiskMarkers", 5}]

I would like to take the image data of the shape it is within like:

Update: I made a brute force version using ImageTrim[] and PixelValuePositions[] but this is just using a approximate square around the max detect point

img = Import["https://i.stack.imgur.com/YDCGF.png"]
markers = MaxDetect[GaussianFilter[img, 10], 0.03, Padding -> 1]
comp = ImageMultiply[img, markers]
data = ImageData[comp];