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added covert_to_pascalformat.py in /coco
python code to convert coco val2014 JSON file to PASCAL XML.
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,43 +1,56 @@ | ||
| #!/usr/bin/python -tt | ||
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| # python code to convert coco val2014 JSON file to PASCAL XML. | ||
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| from pycocotools.coco import COCO | ||
| import os | ||
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| # directory of where coco annotation locates. | ||
| dataDir='.' | ||
| dataType='val2014' | ||
| annFile='%s/annotations/instances_%s.json'%(dataDir,dataType) | ||
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| coco=COCO(annFile) | ||
| cats = coco.loadCats(coco.getCatIds()) | ||
| nms=[cat['name'] for cat in cats] | ||
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| imgIds = coco.getImgIds() | ||
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| directory = './annotations_pascalformat/' | ||
| if not os.path.exists(directory): | ||
| os.makedirs(directory) | ||
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| for n in xrange(len(imgIds)): | ||
| img = coco.loadImgs(imgIds[n])[0] | ||
| annIds = coco.getAnnIds(imgIds=img['id'], iscrowd=None) | ||
| anns = coco.loadAnns(annIds) | ||
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| xml = '<annotation>\n<folder>\nCOCO2014pascalformat\n</folder>\n<filename>\n' | ||
| xml += img['file_name'] + '\n</filename>\n<source>\n<database>\nCOCO2014pascalformat\n</database>\n</source>\n<size>\n' | ||
| xml += '<width>\n' + str(img['width']) + '\n</width>\n' + '<height>\n' + str(img['height']) + '\n</height>\n' | ||
| xml += '<depth>\n3\n</depth>\n</size>\n<segmented>\n0\n</segmented>\n' | ||
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| for i in xrange(len(anns)): | ||
| bbox = anns[i]['bbox'] | ||
| xml += '<object>\n<name>\n' + str(anns[i]['category_id']) + '\n</name>\n' | ||
| xml += '<bndbox>\n<xmin>\n' + str(int(round(bbox[0]))) + '\n</xmin>\n' | ||
| xml += '<ymin>\n' + str(int(round(bbox[1]))) + '\n</ymin>\n' | ||
| xml += '<xmax>\n' + str(int(round(bbox[0] + bbox[2]))) + '\n</xmax>\n' | ||
| xml += '<ymax>\n' + str(int(round(bbox[1] + bbox[3]))) + '\n</ymax>\n</bndbox>\n' | ||
| xml += '<truncated>\n0\n</truncated>\n<difficult>\n0\n</difficult>\n</object>\n' | ||
| xml += '</annotation>' | ||
| f_xml = open(directory + img['file_name'].split('.jpg')[0] + '.xml', 'w') | ||
| f_xml.write(xml) | ||
| f_xml.close() | ||
| print str(n) + ' out of ' + str(len(imgIds)) | ||
| import sys | ||
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| def main(): | ||
| if len(sys.argv) != 3: | ||
| print 'usage: python convert_to_pascalformat.py coco_dataDir coco_dataType' | ||
| print 'for example: python convert_to_pascalformat.py \'./\' \'val2014\'' | ||
| sys.exit(1) | ||
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| dataDir = sys.argv[1] | ||
| dataType = sys.argv[2] | ||
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| from pycocotools.coco import COCO | ||
| import os | ||
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| annFile='%s/annotations/instances_%s.json'%(dataDir,dataType) | ||
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| coco=COCO(annFile) | ||
| cats = coco.loadCats(coco.getCatIds()) | ||
| nms=[cat['name'] for cat in cats] | ||
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| imgIds = coco.getImgIds() | ||
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| directory = './annotations_pascalformat/' | ||
| if not os.path.exists(directory): | ||
| os.makedirs(directory) | ||
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| for n in xrange(len(imgIds)): | ||
| img = coco.loadImgs(imgIds[n])[0] | ||
| annIds = coco.getAnnIds(imgIds=img['id'], iscrowd=None) | ||
| anns = coco.loadAnns(annIds) | ||
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| xml = '<annotation>\n<folder>\nCOCO2014pascalformat\n</folder>\n<filename>\n' | ||
| xml += img['file_name'] + '\n</filename>\n<source>\n<database>\nCOCO2014pascalformat\n</database>\n</source>\n<size>\n' | ||
| xml += '<width>\n' + str(img['width']) + '\n</width>\n' + '<height>\n' + str(img['height']) + '\n</height>\n' | ||
| xml += '<depth>\n3\n</depth>\n</size>\n<segmented>\n0\n</segmented>\n' | ||
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| for i in xrange(len(anns)): | ||
| bbox = anns[i]['bbox'] | ||
| xml += '<object>\n<name>\n' + str(anns[i]['category_id']) + '\n</name>\n' | ||
| xml += '<bndbox>\n<xmin>\n' + str(int(round(bbox[0]))) + '\n</xmin>\n' | ||
| xml += '<ymin>\n' + str(int(round(bbox[1]))) + '\n</ymin>\n' | ||
| xml += '<xmax>\n' + str(int(round(bbox[0] + bbox[2]))) + '\n</xmax>\n' | ||
| xml += '<ymax>\n' + str(int(round(bbox[1] + bbox[3]))) + '\n</ymax>\n</bndbox>\n' | ||
| xml += '<truncated>\n0\n</truncated>\n<difficult>\n0\n</difficult>\n</object>\n' | ||
| xml += '</annotation>' | ||
| f_xml = open(directory + img['file_name'].split('.jpg')[0] + '.xml', 'w') | ||
| f_xml.write(xml) | ||
| f_xml.close() | ||
| print str(n) + ' out of ' + str(len(imgIds)) | ||
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| if __name__ == '__main__': | ||
| main() |