Image Processing & Correction
Pixel-wise Min and Max
Two engines that reduce a stack to a single image — the brightest, or the dimmest, at every pixel
Definition
Max (every pixel) takes a stack of input images of identical shape and produces an output image where each pixel value is the maximum across the stack at that position. Min (every pixel) is the symmetric operation, taking the minimum. The stack can be a multi-channel image (max across channels), a time series (max across time), a focus stack (max across z-slices), or any other collection of co-registered images. The reduction is per-pixel and independent — one position's choice doesn't affect another's.
Related videos & resources
Supporting
User Interface - Image Viewer + Toolbar
Pre processing - Basic - Virtual Channel
H&EDSPTCH
Reduce a stack to a single image
One image out, regardless of how many in
Max projection is the canonical use case
Showing structure across a focal stack as one image
Min projection captures persistence
What's present at every level of the stack
Co-registration matters
The stack pixels need to mean the same thing