72 lines
2.8 KiB
C++
72 lines
2.8 KiB
C++
//
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// Created by jungfrau on 4/22/26.
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//
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#include "ImagePreprocessor.h"
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ImagePreprocessor::ImagePreprocessor(const DiffractionExperiment &experiment,
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const PixelMask &mask)
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: npixels(experiment.GetPixelsNum()),
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experiment(experiment),
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mask_1bit(npixels, false),
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saturation_limit(experiment.GetSaturationLimit()) {
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for (int i = 0; i < npixels; i++)
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mask_1bit[i] = (mask.GetMask().at(i) != 0);
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}
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ImageStatistics ImagePreprocessor::Analyze(std::vector<int32_t> &processed_image, const uint8_t *image_ptr, CompressedImageMode image_mode) {
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switch (image_mode) {
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case CompressedImageMode::Int8:
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return Analyze<int8_t>(processed_image, image_ptr, INT8_MIN, INT8_MAX);
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case CompressedImageMode::Int16:
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return Analyze<int16_t>(processed_image, image_ptr, INT16_MIN, INT16_MAX);
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case CompressedImageMode::Int32:
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return Analyze<int32_t>(processed_image, image_ptr, INT32_MIN, INT32_MAX);
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case CompressedImageMode::Uint8:
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return Analyze<uint8_t>(processed_image, image_ptr, UINT8_MAX, UINT8_MAX);
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case CompressedImageMode::Uint16:
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return Analyze<uint16_t>(processed_image, image_ptr, UINT16_MAX, UINT16_MAX);
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case CompressedImageMode::Uint32:
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return Analyze<uint32_t>(processed_image, image_ptr, UINT32_MAX, UINT32_MAX);
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default:
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throw JFJochException(JFJochExceptionCategory::InputParameterInvalid, "RGB/float mode not supported");
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}
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}
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template<class T>
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ImageStatistics ImagePreprocessor::Analyze(std::vector<int32_t> &processed_image, const uint8_t *input, T err_pixel_val, T sat_pixel_val) {
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if (processed_image.size() != npixels)
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throw JFJochException(JFJochExceptionCategory::InputParameterInvalid, "Processed image size mismatch");
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auto image = reinterpret_cast<const T *>(input);
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ImageStatistics ret{};
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if (sat_pixel_val > saturation_limit)
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sat_pixel_val = static_cast<T>(saturation_limit);
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for (int i = 0; i < npixels; i++) {
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if (mask_1bit[i] != 0) {
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processed_image[i] = INT32_MIN;
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++ret.masked_pixel_count;
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} else if (image[i] >= sat_pixel_val) {
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processed_image[i] = INT32_MAX;
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++ret.saturated_pixel_count;
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} else if (std::is_signed<T>::value && (image[i] == err_pixel_val)) {
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// Error pixels are possible only for signed types
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processed_image[i] = INT32_MIN;
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++ret.error_pixel_count;
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} else {
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processed_image[i] = static_cast<int32_t>(image[i]);
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if (image[i] > ret.max_value)
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ret.max_value = image[i];
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if (image[i] < ret.min_value)
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ret.min_value = image[i];
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}
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}
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return ret;
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}
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