Channel

Description

Name

enum Tinman.Image.Channel

Used by

Function.channel / Image.Invert.channel / IntensityFrom.channel / IntensityTo.channel

Enumeration of pixel channels.

Items

# Name Tag

0

Intensity

-

Grayscale intensity (defaults to 0).

During scanline processing, this channel is 24-bits wide. Afterwards it is 16-bits wide.

1

Red

-

Red channel (defaults to 0).

During scanline processing, this channel is 24-bits wide. Afterwards it is 16-bits wide.

2

Green

-

Green channel (defaults to 0).

During scanline processing, this channel is 24-bits wide. Afterwards it is 16-bits wide.

3

Blue

-

Blue channel (defaults to 0).

During scanline processing, this channel is 24-bits wide. Afterwards it is 16-bits wide.

4

Alpha

-

Alpha channel (defaults to 16777215).

During scanline processing, this channel is 24-bits wide. Afterwards it is 16-bits wide.

5

Void

-

Void mask channel (defaults to 16777215).

The void mask channel only has one bit per pixel, which is computed from pixel channel values using this formula:

void := (value + 8388607) / 16777215

Pixel channel values in the range [0..8388607] are thus mapped to void pixels, and values within [8388608..16777215] are mapped to existent pixels.