Files
Jungfraujoch/image_analysis/roi/ROIIntegrationCPU.cpp
T
leonarski_f 58910274bf image_analysis: compute ROI statistics in the non-FPGA path
MXAnalysisWithoutFPGA never filled DataMessage.roi, so ROI integrals were
only available on the FPGA path. Add a software ROI engine that mirrors the
FPGA roi_calc kernel: per-ROI sum, sum of squares, good-pixel count, max and
intensity-weighted centre of mass, with each pixel carrying a 16-bit mask so
it can contribute to any subset of up to 16 ROIs.

New image_analysis/roi/ library (JFJochROIIntegration), structured like azint:
a base that precomputes the per-pixel mask and names, a templated CPU engine
(generic over pixel type for a future 16-bit path), and a GPU kernel using
per-block shared-memory atomics for the STXM case (half-detector ROIs).

Masked pixels are excluded entirely; saturated pixels are excluded from the
sums but still count towards the max, matching roi_calc exactly. The engine is
only constructed when at least one ROI is defined. Downstream CBOR/HDF5 already
consume message.roi, so no further changes are needed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-17 21:15:54 +02:00

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// SPDX-FileCopyrightText: 2026 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only
#include "ROIIntegrationCPU.h"
ROIIntegrationCPU::ROIIntegrationCPU(const DiffractionExperiment &experiment)
: ROIIntegration(experiment) {}
void ROIIntegrationCPU::Run(const ImagePreprocessorBuffer &image, std::map<std::string, ROIMessage> &out) {
RunROI(image, out);
}