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AnatomyOfAnImage : Update link, fix tileSize #5646

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Jan 30, 2024
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AnatomyOfAnImage : Update link, fix tileSize #5646

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4 changes: 2 additions & 2 deletions doc/source/WorkingWithImages/AnatomyOfAnImage/index.md
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Expand Up @@ -66,14 +66,14 @@ Channel names is a list of arbitrary names specifying the channels in the image.
Additional channels are grouped into layers using a prefix-based naming convention. For example, `diffuse.R`, `diffuse.G` and `diffuse.B` are the RGB channels of the `diffuse` layer. By convention, `Z` identifies a depth channel, and any other name identifies an auxiliary channel.

> Note :
> Gaffer follows the [OpenEXR convention for channel names](http://www.openexr.com/documentation/InterpretingDeepPixels.pdf).
> Gaffer follows the [OpenEXR convention for channel names](https://openexr.com/en/latest/InterpretingDeepPixels.html).


### Channel data ###

**Channel data** contains each channel's list of pixel values. Internally, Gaffer represents pixels as 32-bit floating point values, which are converted to and from other bit depths by the ImageReader or ImageWriter nodes, as needed.

Channel data contains no positional information. When an image's pixel data is processed by a computation, the pixels of each channel are grouped into 64x64 pixel tiles, which are arranged in rows and columns to form the complete image. Images can be computed in parallel, on a per-tile, per-channel basis.
Channel data contains no positional information. When an image's pixel data is processed by a computation, the pixels of each channel are grouped into 128x128 pixel tiles, which are arranged in rows and columns to form the complete image. Images can be computed in parallel, on a per-tile, per-channel basis.


### Image coordinate system ###
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