Replace each pixel with the maximum of the color channels:

Compute the average of three color images:

Color negate a grayscale image:

Color negate an RGB image:

Reverse the elements of each channel vector:

Replace each RGB pixel by the maximum of all channel values:

Compute the maximum of corresponding pixel values in a list of grayscale images:

Apply a pure function to a sequence of pixel values in a list of RGB-color images:

Apply a function to pixels of a 3D RGB image:

Combine two 3D images:

Apply a gamma correction:

Color negate the image:

Covert to a single-channel image:

Display a selected channel:

Use built-in color gradients to add color to an image:

Add an alpha channel to a grayscale image:

Highlight a region in an image:

Compute the elementwise inverse of an image:

Pixel-wise division of two images:

Compute max intensity projection (MIP) on 3D CT data:

Create a saturated composite image:

Colorize the gradient's magnitude and orientation of an image:

Compute the so-called Robert's gradient image:

ImageApply returns an image of the same data type as input:

Clipping and truncation will happen when necessary:

Convert to a real type to avoid clipping and truncating:

In ImageApply[f,image], evaluations of f may be cached to focus on speed of getting a result:

Single channel "Byte" images use cached evaluations:

This may affect the result if the specified function can give different results when applied to same inputs:

Multichannel "Byte" images use cached evaluations with Interleaving->False:

Compare with the timing for an interleaved image when no caching is used:

Multichannel "Byte" images use cached evaluations with Listable functions:

Functions that accept lists as their input cannot be applied on single-channel images:

Functions should return a number or a list of numbers for every pixel in the image:

The same inverse function can be applied to an image with nonzero pixels:

ImageApply preserves the image data type, clipping or truncating values if necessary:

Apply the function to a "Real32" image instead:

Rotate color channels:

Convert an image to grayscale while preserving the red color:

Apply any coloring function to an image:

Colorize a grayscale image: