I420toBGR¶

Versioned name: I420toBGR-8

Category: Image processing

Short description: I420toBGR performs image conversion from I420 to BGR format.

Detailed description:

Similar to I420toRGB but output channels for each pixel are reversed so that the first channel is blue, the second one is green, the last one is red. See detailed conversion formulas in the I420toRGB description.

Inputs:

Same as specified for I420toRGB operation.

Outputs:

1: A tensor of type T representing an image converted in BGR format. Dimensions:
- N - batch dimension
- H - height dimension is the same as the image height
- W - width dimension is the same as the image width
- C - channels dimension is equal to 3. The first channel is Blue, the second one is Green, the last one is Red

Types:

T: uint8 or any supported floating-point type.

Examples:

Example 1

<layer ... type="I420toBGR">
    <input>
        <port id="0">
            <dim>1</dim>
            <dim>720</dim>
            <dim>640</dim>
            <dim>1</dim>
        </port>
    </input>
    <output>
        <port id="1">
            <dim>1</dim>
            <dim>480</dim>
            <dim>640</dim>
            <dim>3</dim>
        </port>
    </output>
</layer>

Example 2

<layer ... type="I420toBGR">
    <input>
        <port id="0">  <!-- Y plane -->
            <dim>1</dim>
            <dim>480</dim>
            <dim>640</dim>
            <dim>1</dim>
        </port>
        <port id="1">  <!-- U plane -->
            <dim>1</dim>
            <dim>240</dim>
            <dim>320</dim>
            <dim>1</dim>
        </port>
        <port id="2">  <!-- V plane -->
          <dim>1</dim>
          <dim>240</dim>
          <dim>320</dim>
          <dim>1</dim>
        </port>
    </input>
    <output>
        <port id="1">
            <dim>1</dim>
            <dim>480</dim>
            <dim>640</dim>
            <dim>3</dim>
        </port>
    </output>
</layer>