47 строки
1.8 KiB
Python
47 строки
1.8 KiB
Python
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import os, sys, importlib
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import shutil, time
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import PARAMETERS
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locals().update(importlib.import_module("PARAMETERS").__dict__)
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####################################
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# Parameters
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####################################
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image_set = "train"
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####################################
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# Main
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####################################
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# read ground truth and ROIs
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if not os.path.exists(cntkFilesDir + image_set + ".cache_gt_roidb.pkl"):
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raise Exception("Run 2_cntkGenerateInputs.py before executing this script.")
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imdb = imdbs[image_set]
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gtRois = imdb.gt_roidb()
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print("Number of images in set '{}' = {}".format(image_set, imdb.num_images))
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# extract width, height, etc for all ground truth annotations in all images
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roiInfos = []
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for imgIndex in range(0, imdb.num_images):
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imgPath = imdb.image_path_at(imgIndex)
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imgWidth, imgHeight = imWidthHeight(imgPath)
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if gtRois[imgIndex] != None:
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for gtRoi in gtRois[imgIndex]['boxes']:
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roiWidth = gtRoi[2] - gtRoi[0] +1
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roiHeight = gtRoi[3] - gtRoi[1] +1
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roiRelWidth = float(roiWidth) / imgWidth
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roiRelHeight = float(roiHeight) / imgHeight
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roiInfos.append((roiRelWidth, roiRelHeight, roiRelWidth * roiRelHeight, roiRelWidth / roiRelHeight))
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# analyse typical width, height, etc of the ground truth annotations
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print("\nStatistics for ground truth annotations:")
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for percentile in np.linspace(0, 100, 21):
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print(" Percentile {:3.0f}: width = {:<.2f}, height = {:<.2f}, area = {:<.3f}, aspectRatio = {:<.2f}".format(
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percentile,
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np.percentile(getColumn(roiInfos, 0), percentile),
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np.percentile(getColumn(roiInfos, 1), percentile),
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np.percentile(getColumn(roiInfos, 2), percentile),
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np.percentile(getColumn(roiInfos, 3), percentile)))
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print("DONE.")
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