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a8725e5e88
@ -27,14 +27,15 @@ random.seed(0)
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for camera in IMAGES_CAMERAS_FOLDER:
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random.shuffle(imagesCamerasFileNames[camera])
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minimumNumberOfImagesCameras = 16#min([len(imagesCamerasFileNames[camera]) for camera in IMAGES_CAMERAS_FOLDER])
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minimumNumberOfImagesCameras = 4#min([len(imagesCamerasFileNames[camera]) for camera in IMAGES_CAMERAS_FOLDER])
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for camera in IMAGES_CAMERAS_FOLDER:
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imagesCamerasFileNames[camera] = imagesCamerasFileNames[camera][:minimumNumberOfImagesCameras]
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print(camera, imagesCamerasFileNames[camera])
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numberOfCameras = len(IMAGES_CAMERAS_FOLDER)
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camerasIterativeMean = {camera: iterativeMean() for camera in IMAGES_CAMERAS_FOLDER}
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minColor = None
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maxColor = None
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# Assume that for each camera, its images have the same resolution.
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# The following consider a given color channel resolution, assuming they all have the same resolution.
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minimalColorChannelCameraResolution = None
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@ -45,17 +46,14 @@ for camera in IMAGES_CAMERAS_FOLDER:
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if minimalColorChannelCameraResolution is None or singleColorChannelImagesShape < minimalColorChannelCameraResolution:
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minimalColorChannelCameraResolution = singleColorChannelImagesShape
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minColor = None#13#None
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maxColor = None#7497#None
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minColor = 13#None
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maxColor = 7497#None
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accuracy = []
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numberOfTrainingImages = int(minimumNumberOfImagesCameras * TRAINING_PORTION)
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numberOfTestingImages = minimumNumberOfImagesCameras - int(minimumNumberOfImagesCameras * TRAINING_PORTION)
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cameraTestingImagesNoise = {}
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from utils import silentTqdm
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#tqdm = silentTqdm
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returnSingleColorChannelImage = lambda singleColorChannelImage, _minColor, _maxColor: singleColorChannelImage
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for computeExtremes in tqdm(([True] if minColor is None or maxColor is None else []) + [False], 'Compute extremes'):
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@ -68,7 +66,6 @@ for computeExtremes in tqdm(([True] if minColor is None or maxColor is None else
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# Should make a function
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imageFileName = imagesCamerasFileNames[camera][numberOfTrainingImages + cameraTestingImageIndex]
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imageFilePath = f'{IMAGES_CAMERAS_FOLDER[camera]}/{imageFileName}'
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print(f'{imageFilePath=}')
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# Should make a function
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singleColorChannelImages = {color: rescaleIfNeeded(getColorChannel(imageFilePath, color)[:minimalColorChannelCameraResolution[0],:minimalColorChannelCameraResolution[1]], minColor, maxColor) for color in Color}
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@ -77,7 +74,7 @@ for computeExtremes in tqdm(([True] if minColor is None or maxColor is None else
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multipleColorsDenoisedImage = mergeSingleColorChannelImagesAccordingToBayerFilter(singleColorChannelDenoisedImages)
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imagePrnuEstimateNpArray = multipleColorsImage - multipleColorsDenoisedImage
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cameraTestingImagesNoise[camera] = cameraTestingImagesNoise.get(camera, []) + [imagePrnuEstimateNpArray]
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cameraTestingImagesNoise[camera] = cameraTestingImagesNoise.get(camera, []) + [multipleColorsDenoisedImage]
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for cameraTrainingImageIndex in tqdm(range(minimumNumberOfImagesCameras if computeExtremes else numberOfTrainingImages), 'Camera training image index'):
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for cameraIndex, camera in enumerate(tqdm(IMAGES_CAMERAS_FOLDER, 'Camera')):
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imageFileName = imagesCamerasFileNames[camera][cameraTrainingImageIndex]
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@ -97,7 +94,6 @@ for computeExtremes in tqdm(([True] if minColor is None or maxColor is None else
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cameraIterativeMean.add(imagePrnuEstimateNpArray)
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if cameraIndex == numberOfCameras - 1:
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numberOfTrainingImagesAccuracy = 0
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print(f'{numberOfTestingImages=} {numberOfCameras=}')
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# Loop over each camera testing image folder.
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for actualCamera in IMAGES_CAMERAS_FOLDER:
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for cameraTestingImageIndex in tqdm(range(numberOfTestingImages), 'Camera testing image index'):
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@ -105,18 +101,17 @@ for computeExtremes in tqdm(([True] if minColor is None or maxColor is None else
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minimalDistance = None
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# Loop over each camera to compute closeness between the considered testing image noise and the estimated PRNUs of the various cameras.
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for camera in IMAGES_CAMERAS_FOLDER:
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distance = rmsDiffNumpy(cameraTestingImagesNoise[actualCamera][cameraTestingImageIndex], camerasIterativeMean[camera].mean)
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distance = rmsDiffNumpy(cameraTestingImagesNoise[camera][cameraTestingImageIndex], camerasIterativeMean[camera].mean)
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print(f'{cameraTestingImageIndex=} {camera=} {actualCamera=} {distance=}')
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if minimalDistance is None or distance < minimalDistance:
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minimalDistance = distance
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cameraPredicted = camera
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print(f'Predicted camera {cameraPredicted} {"good" if cameraPredicted == actualCamera else "bad"}')
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if cameraPredicted == actualCamera:
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numberOfTrainingImagesAccuracy += 1
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accuracy += [numberOfTrainingImagesAccuracy / (numberOfTestingImages * numberOfCameras)]
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for camera in IMAGES_CAMERAS_FOLDER:
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plt.imsave(f'{setting}_estimated_prnu_camera_{escapeFilePath(camera)}.png', (camerasIterativeMean[camera].mean))
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plt.imsave(f'{setting}_estimated_prnu_subgroup_{escapeFilePath(camera)}.png', (camerasIterativeMean[camera].mean))
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plt.title(f'Accuracy of camera source attribution thanks to a given number of images to estimate PRNUs with {DENOISER} denoiser')
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plt.xlabel('Number of images to estimate PRNU')
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