Learn more about Video and Image Processing Blockset

Version 2.7 (R2009a) Video and Image Processing Blockset

This table summarizes what's new in Version 2.7 (R2009a):

New Features and Changes	Version Compatibility Considerations	Fixed Bugs and Known Problems	Related Documentation at Web Site
Yes Details below	No	Bug Reports Includes fixes	Printable Release Notes: PDF Current product documentation

New features and changes introduced in this version are:

• Enhanced Draw Shapes and Draw Markers blocks

• Enhanced To Video Display Block

• Enhanced Video Viewer Block

• Improved Memory use in 2–D FIR Filter, 2–D Convolution, and 2–D Correlation Blocks

• Run-Time Library Removal

• New Rounding Modes

Enhanced Draw Shapes and Draw Markers blocks

The Draw Shapes and Draw Markers blocks have the added feature to accept border and fill color values at the input port. A new anti-aliasing algorithm produces smoother edges. The block algorithms are enhanced to improve performance.

Enhanced To Video Display Block

The To Video Display block is modified to remain open after simulation stops. By default, the block does not use hardware acceleration thus reducing memory requirements, improving behavior on multi-headed displays and external projectors. In addition, there is a new option to turn on hardware acceleration for improved performance.

Enhanced Video Viewer Block

The Video Viewer block has a new interface providing pixel region display and visualization controls.

Improved Memory use in 2–D FIR Filter, 2–D Convolution, and 2–D Correlation Blocks

The new algorithm used by 2-D FIR Filter, 2-D Convolution, and 2-D Correlation blocks reduces memory requirements by eliminating the need for the intermediate pad buffer.

Run-Time Library Removal

The Real-Time Workshop^® software pack-and-go utility enables code portability. In previous releases, the Video and Image Processing Blockset software pack-and-go .zip file included more files than necessary due to a dependence on a run-time library that shipped with the product. In addition, you could not examine the contents of Video and Image Processing Blockset run-time functions from the Real-Time Workshop HTML report, because the code was accessed through the prebuilt library. In R2009a, this dependence on the run-time library for code generation is removed. The pack-and-go .zip file is now smaller than in previous releases, and the Real-Time Workshop HTML report provides links to the source code of the run-time functions.

New Rounding Modes

The following rounding modes have been added to blocks that support fixed-point signals:

• Convergent — Rounds the result of a calculation to the closest representable number. In the case of a tie, Convergent rounds to the nearest even number. This is the least biased rounding method provided by the blockset.

• Round— Rounds the result of a calculation to the closest representable number. In the case of a tie, it rounds positive numbers to the closest representable number in the direction of positive infinity, and it rounds negative numbers to the closest representable number in the direction of negative infinity.

• Simplest— Rounds the result of a calculation using the rounding mode that adds the least amount of extra rounding code to your generated code. For more information, see Rounding Mode: Simplest in the Simulink^® Fixed Point™ documentation.

Version 2.8 (R2009b) Video and Image Processing Blockset

Version 2.6 (R2008b) Video and Image Processing Blockset

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