kopia lustrzana https://github.com/OpenDroneMap/ODM
89 wiersze
3.2 KiB
Python
89 wiersze
3.2 KiB
Python
import ecto
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import cv2
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import pyexiv2
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from opendm import log
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from opendm import system
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from opendm import io
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from opendm import types
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class ODMResizeCell(ecto.Cell):
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def declare_params(self, params):
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pass
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def declare_io(self, params, inputs, outputs):
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inputs.declare("args", "The application arguments.", [])
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inputs.declare("photos", "Clusters inputs. list of ODMPhoto's", [])
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outputs.declare("photos", "Clusters output. list of ODMPhoto's", [])
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def process(self, inputs, outputs):
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log.ODM_INFO('Running ODM Resize Cell')
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# get inputs
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args = self.inputs.args
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photos = self.inputs.photos
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project_path = io.absolute_path_file(args['project_path'])
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if not photos:
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log.ODM_ERROR('Not enough photos in photos to resize')
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return ecto.QUIT
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# create working directory
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resizing_dir = io.join_paths(project_path, 'images_resize')
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system.mkdir_p(resizing_dir)
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log.ODM_DEBUG('Resizing dataset to: %s' % resizing_dir)
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# check if we rerun cell or not
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rerun_cell = args['run_only'] is not None \
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and args['run_only'] == 'resize'
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# loop over photos
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for photo in photos:
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# TODO(edgar): check if resize is needed, else copy img.
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# Try to avoid oversampling!
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new_path_file = io.join_paths(resizing_dir, photo.filename)
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if not io.file_exists(new_path_file) or rerun_cell:
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# open and resize image with opencv
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img = cv2.imread(photo.path_file)
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# compute new size
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max_side = max(photo.width, photo.height)
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ratio = float(args['resize_to']) / float(max_side)
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img_r = cv2.resize(img, None, fx=ratio, fy=ratio)
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# write image with opencv
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cv2.imwrite(new_path_file, img_r)
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# read metadata with pyexiv2
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old_meta = pyexiv2.ImageMetadata(photo.path_file)
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new_meta = pyexiv2.ImageMetadata(new_path_file)
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old_meta.read()
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new_meta.read()
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# copy metadata
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old_meta.copy(new_meta)
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# update metadata size
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new_meta['Exif.Photo.PixelXDimension'].value = img_r.shape[0]
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new_meta['Exif.Photo.PixelYDimension'].value = img_r.shape[1]
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new_meta.write()
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# update photos array with new values
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photo.path_file = new_path_file
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photo.width = img_r.shape[0]
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photo.height = img_r.shape[1]
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photo.update_focal()
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# log message
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log.ODM_DEBUG('Resized %s | dimensions: %s' % \
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(photo.filename, img_r.shape))
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else:
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# log message
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log.ODM_WARNING('Already resized %s | dimensions: %s x %s' % \
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(photo.filename, photo.width, photo.height))
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log.ODM_INFO('Resized %s images' % len(photos))
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# append photos to cell output
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self.outputs.photos = photos
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log.ODM_INFO('Running ODM Resize Cell - Finished')
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return ecto.OK if args['end_with'] != 'resize' else ecto.QUIT |