Which gain quantifies the effect of reducing image size in an image intensifier?

Minification gain quantifies the effect of reducing image size in an image intensifier by taking advantage of the optical design that compresses the input image to a smaller output. This process enhances the spatial resolution of the intensifier; as the input image is shrunk, the number of photoelectrons striking the output screen increases per unit area, thereby intensifying the brightness of the image.

In the context of image intensification, minification gain is a critical metric that illustrates how effectively an image can be amplified while maintaining or improving clarity and detail. Unlike other gains, such as brightness gain, which refers to the increase in image brightness due to the multiplication of light, minification specifically focuses on the impact of image resizing within the intensification process. It is particularly relevant in applications where the control over image detail and size is crucial, such as in medical imaging or low-light surveillance.