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DLPLCR4500EVM: How to bypass video processing algorithms

Clara Llorens Quintana
Prodigy 30 points
Part Number: DLPLCR4500EVM
Other Parts Discussed in Thread: DLPC350,

Hi TI,

When using the video mode in the GUI, how can I bypass the the image enhancement algorithms that are applied by default? Is there any way to do the pixels of frames of the video to be pixel accurate so each pixel would corresponds to a micromirror on the DMD?

Thank you!

  • 0
    TI__Genius 9570 points

    Hi,

    Welcome to the E2E forums with your questions. 

    Unfortunately there is no method in video mode. 

    If you look in the DLPC350 datasheet you can see the following path and only in pattern sequence mode can you bypass any of the image enhancement algorithms. 

    https://www.ti.com/lit/gpn/dlpc350

    If you look in the DLPLCR4500EVM user guide, it gives more information on pattern sequence mode.

    https://www.ti.com/lit/pdf/dlpu011

    Thanks,

    Alex Chan

  • 0
    Prodigy 30 points

    Hi Alexander,

    Thank you for your quick response.

    I am copy pasting from the DLP® LightCrafter 4500Tm Evaluation Module User's Guide (page 47)

    "For other applications where this image enhancement is not desired, the video processing algorithms can be bypassed and replaced with a specific set of bit-planes"

    If however, there is no way to bypass these. Is there any way that I can do a pattern sequence with variable exposure and save/reload the sequence, so each time I want to project a sequence of patterns I don't have to build the sequence with the stored individual patterns?

  • 0 in reply to Clara Llorens Quintana
    TI__Genius 11565 points

    Hello User,

    Our team will need to look into your questions and get back to you next week.

    Regards,

    Lori 

  • 0 in reply to Clara Llorens Quintana
    TI__Genius 9570 points

    Hi Clara,

    If you are using our latest GUI version 4.4.1, there is the option to save a solution as an ini file that you can upload later. Basically you can create a pattern sequence steps or whatever changes you make in the GUI, all of that can be saved and reloaded later to rerun the pattern sequence that you had created.

    Please see the DLPLCR4500EVM user guide on instructions on how to create pattern sequences such as here.

    You will still need to have the images stored so see section 3.5 of the user guide and you can also watch this youtube video to get a good overview.

    https://youtu.be/RxgmGkNsqvk

    Thanks,

    Alex Chan