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TDA4: LDC node

lawrence
Prodigy 100 points

Use LDC node the result as picture,  I want to set the invalid pixel as black( Where the arrow points), like the bottom， Can you tell me how to set?

  • 0
    TI__Guru 71526 points

    Hello Lawrence,

    Please provide what processor and/or platform you are using.

    Thanks,

    ~Leonard  

     

  • 0 in reply to LeonardEllis
    Prodigy 100 points

    tda4 ldc node, this tivxVpacLdcNode() function.

    Thanks Leonard

  • 0 in reply to lawrence
    TI__Guru 59380 points

    Hi Lawrence,

    Filling in black for out of image boundary pixels is not supported by LDC H/W.
    LDC H/W always use the color at the image boundary before it goes out.

    Therefore, you will have to create slightly bigger images with black pixels on the side LDC may go out of image boundary.
    In you image above, you will need at least 1 row of black pixels at the top for your LDC input image.
    Then, you shall program LDC according the new input image size.

    I am not familiar with S/W implementation, but I would imagine the above could be supported by using larger image buffers to capture LDC input images with black pixels initialized to black.

    Best,
    Gang