Bayer Filter

The Bayer Filter module will rearrange the current image pixels from a Bayer format to an RGB color format. The Bayer pixel format is used by most CCD cameras to sample red, green and blue colors using different color sensors. These color sensors then produce an image that has the red, green and blue colors interlaced around each other. In order to create a reasonable color representation these single channel color pixels need to be combined in such a way as to produce a color image.

For a more in depth review of the Bayer format in addition to an interactive demo see The Imaging Source.

Interface

Instructions

1. Select which type of interpolation mode you would like to use in creating a color image.

Nearest Neighbor - uses the nearest RGB value for each pixel

Average - uses a combined average of the nearest RGB values for each pixel

Note: In some cases the image might need to be flipped horizontally in order for the colors to be correctly produced. This flipping causes the ordering of the RGB pixels to change which may help your specific format. Normally the Bayer module expects pixels as

RGRGRGRGRG
GBGBGBGBGB
RGRGRGRGRG
GBGBGBGBGB

but flipping the image horizontally BEFORE the Bayer module will produce

GBGBGBGBGB
RGRGRGRGRG
GBGBGBGBGB
RGRGRGRGRG

Example

Bayer Source Image Colorized

For more information

The Imaging Source
Wikipedia - Bayer Filter