| # Copyright 2014 The Android Open Source Project |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| """Verifies JPEG and YUV images are similar.""" |
| |
| |
| import logging |
| import os.path |
| from mobly import test_runner |
| |
| import its_base_test |
| import camera_properties_utils |
| import capture_request_utils |
| import image_processing_utils |
| import its_session_utils |
| import target_exposure_utils |
| |
| MAX_IMG_SIZE = (1920, 1080) |
| NAME = os.path.splitext(os.path.basename(__file__))[0] |
| PATCH_H = 0.1 # center 10% |
| PATCH_W = 0.1 |
| PATCH_X = 0.5 - PATCH_W/2 |
| PATCH_Y = 0.5 - PATCH_H/2 |
| THRESHOLD_MAX_RMS_DIFF = 0.01 |
| |
| |
| def compute_means_and_save(cap, img_name, log_path): |
| """Compute the RGB means of a capture. |
| |
| Args: |
| cap: 'YUV' or 'JPEG' capture |
| img_name: text for saved image name |
| log_path: path for saved image location |
| Returns: |
| RGB means |
| """ |
| img = image_processing_utils.convert_capture_to_rgb_image(cap, True) |
| image_processing_utils.write_image( |
| img, '%s_%s.jpg' % (os.path.join(log_path, NAME), img_name)) |
| patch = image_processing_utils.get_image_patch( |
| img, PATCH_X, PATCH_Y, PATCH_W, PATCH_H) |
| rgb_means = image_processing_utils.compute_image_means(patch) |
| logging.debug('%s rbg_means: %s', img_name, rgb_means) |
| return rgb_means |
| |
| |
| class YuvPlusJpegTest(its_base_test.ItsBaseTest): |
| """Test capturing a single frame as both YUV and JPEG outputs.""" |
| |
| def test_yuv_plus_jpeg(self): |
| logging.debug('Starting %s', NAME) |
| with its_session_utils.ItsSession( |
| device_id=self.dut.serial, |
| camera_id=self.camera_id, |
| hidden_physical_id=self.hidden_physical_id) as cam: |
| props = cam.get_camera_properties() |
| props = cam.override_with_hidden_physical_camera_props(props) |
| log_path = self.log_path |
| |
| # check SKIP conditions |
| camera_properties_utils.skip_unless( |
| camera_properties_utils.compute_target_exposure(props)) |
| |
| # Load chart for scene |
| its_session_utils.load_scene( |
| cam, props, self.scene, self.tablet, self.chart_distance) |
| |
| # Create requests |
| max_jpeg_size = capture_request_utils.get_available_output_sizes( |
| 'jpeg', props)[0] |
| if capture_request_utils.is_common_aspect_ratio(max_jpeg_size): |
| w, h = capture_request_utils.get_available_output_sizes( |
| 'yuv', props, MAX_IMG_SIZE, max_jpeg_size)[0] |
| else: |
| w, h = capture_request_utils.get_available_output_sizes( |
| 'yuv', props, max_size=MAX_IMG_SIZE)[0] |
| logging.debug('YUV size: (%d, %d)', w, h) |
| logging.debug('JPEG size: %s', max_jpeg_size) |
| fmt_yuv = {'format': 'yuv', 'width': w, 'height': h} |
| fmt_jpg = {'format': 'jpeg'} |
| |
| # Use a manual request with a linear tonemap so that the YUV and JPEG |
| # should look the same (once converted by the image_processing_utils). |
| e, s = target_exposure_utils.get_target_exposure_combos( |
| log_path, cam)['midExposureTime'] |
| req = capture_request_utils.manual_capture_request(s, e, 0.0, True, props) |
| |
| cap_yuv, cap_jpg = cam.do_capture(req, [fmt_yuv, fmt_jpg]) |
| rgb_means_yuv = compute_means_and_save(cap_yuv, 'yuv', log_path) |
| rgb_means_jpg = compute_means_and_save(cap_jpg, 'jpg', log_path) |
| |
| rms_diff = image_processing_utils.compute_image_rms_difference_1d( |
| rgb_means_yuv, rgb_means_jpg) |
| msg = f'RMS diff: {rms_diff:.4f}' |
| logging.debug('%s', msg) |
| if rms_diff >= THRESHOLD_MAX_RMS_DIFF: |
| raise AssertionError(msg + f', spec: {THRESHOLD_MAX_RMS_DIFF}') |
| |
| if __name__ == '__main__': |
| test_runner.main() |