Can I Save 8-bit AVI Files from Vision Assistant?Primary Software: Vision AssistantPrimary Software Version: 7.0 Primary Software Fixed Version: N/A Secondary Software: N/A
Problem: I have opened several 8-bit images in Vision Assistant's Image Browser and selected some of the images to create an AVI. I know Vision Development Module supports 8-bit and 32-bit AVI files but does Vision Assistant also support these two formats? Solution: No, Vision Assistant only supports the creation of 32-bit AVI files. Even if you have selected 8-bit images to create an AVI from, the resulting AVI will be 32-bit. One way around this is to create the 32-bit AVI in Vision Assistant and convert it to an 8-bit AVI in LabVIEW (shown below). First, a new AVI is created for the 8-bit AVI and the 32-bit AVI is opened outside of the while loop. Then, the first frame is read from the 32-bit AVI and a single color plane is extracted as an 8-bit frame with IMAQ ExtractSingleColorPlane. Finally, this frame is added to the new 8-bit AVI. This is repeated until all frames are converted. Note: For a larger image please see 32bit to 8bit AVI.png in the Attachments section below.  Another option is to create the entire AVI in LabVIEW such that you will not need to do any conversions. Related Links: NI Vision Acquisition Support Community Example: Convert 32bit AVI to 8bit AVI KnowledgeBase 15JEIOU0: How do I Play an AVI File from LabVIEW? KnowledgeBase 30IB6EJT: Vision AVI File Appears Choppy in Windows Media Player KnowledgeBase 39J8G1QX: Writing a Compressed AVI File with the IMAQ Vision Acquisition Software Attachments:  32bit to 8bit AVI.png
Report Date: 10/30/2008 Last Updated: 08/25/2009 Document ID: 4QTL338Q |
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