Radeon ProRender

Weighted Sum Filter

Filter

RIF_IMAGE_FILTER_WEIGHTED_SUM

Description

Calculates the weighted sum of the images (outputImg = W0 * inputImg0 + W1 * inputImg1 + .. WN * inputImgN). The input image passed in rifCommandQueueAttachImageFilter() is not used.

Parameters

Parameter Type Input/Output Description
inputs array of images input Array of images which will be added.
weights array of floats input Array of weighting coefficients.
inputsNum uint input The number of images (images arrays size).

Usage Example

std::vector<rif_image> inputs;
std::vector<float> weights;
inputs.push_back(img0);
inputs.push_back(img1);
//.......................
inputs.push_back(imgN);
weights.push_back(0.1);
weights.push_back(-0.5);
//.......................
weights.push_back(2);
rifContextCreateImageFilter(context, RIF_IMAGE_FILTER_WEIGHTED_SUM, &filter);
rifImageFilterSetParameterImageArray(filter, "inputs", &inputs[0], inputs.size());
rifImageFilterSetParameterFloatArray(filter, "weights", &weights[0], weights.size());
rifImageFilterSetParameter1u(filter, "inputsNum", inputs.size());
rifCommandQueueAttachImageFilter(queue, filter, inputs[0], outputImage);
rifContextExecuteCommandQueue(context, queue, nullptr, nullptr, nullptr);