To Convert Between 8 Bits And 16 Bits Per Channel; To Convert From 16 Bits To 32 Bits Per Channel - Adobe PHOTOSHOP CS2 User Manual

Crop with rotation and resize
•
Fill and stroke (no pattern fill, supported blend modes only)
•
• Image Size and Canvas Size commands
Trim command
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• Arbitrary rotation and 90˚ rotation and flips
Blend modes: Normal, Multiply, Difference, Lighten, Darken, Linear Dodge
•
Free Transform command
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• The following tools in the toolbox: Clone Stamp tool (supported blend modes only), and History Brush (supported
blend modes only)
Display of floating-point values in the Info palette
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• Conversion to 8- or 16-bits-per-channel documents, and conversion from 16-bits-per-channel to 32-bits-per-
channel
Conversion between RGB and Grayscale modes
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• Support of the following file formats: PSD/PSB, TIFF, LogLUV TIFF (read-only), Radiance HDR, PFM, OpenEXR
Support for the following image adjustment commands: Channel Mixer, Photo Filter, and Exposure.
•
• Support for the following plug-in filters: Average, Radial Blur, Fibers, Lens Flare, DeInterlace, and NTSC Colors
Support for the following built-in filters: Surface Blur, Box Blur, Gaussian Blur, Motion Blur, Sampled/Shape Blur,
•
Add Noise, Unsharp Mask, High Pass, Offset
Save Selection and Load Selection commands
•
To work with certain Photoshop features, such as layers, filters, and adjustments, you can convert a 32-bits-per-
channel image to a 16-bits-per-channel image. Do a Save As and convert a copy of the image file so that the original
file retains the full 32-bits-per-channel image data.
Note: It's also possible to convert a 32-bits-per-channel image to 8 bits per channel. See "To convert from 32 bits to 8 or
16 bits per channel" on page 205.
See also
"About High Dynamic Range images" on page 201

To convert between 8 bits and 16 bits per channel

Choose Image > Mode > 16 Bits/Channel or 8 Bits/Channel.

To convert from 16 bits to 32 bits per channel

Open a 16-bit image. If necessary, flatten the image. Only flat images can be converted to 32-bits-per-channel
1
mode.
Choose Image > Mode > 32 Bits/Channel.
2
Note: It's also possible to convert a 32-bits-per-channel image to 8-bits-per-channel. See "To convert from 32 bits to 8 or
16 bits per channel" on page 205.
ADOBE PHOTOSHOP CS2 233
User Guide