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);