| # Copyright 2013 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 color correction parameter settings.""" |
| |
| |
| import logging |
| import os.path |
| import matplotlib |
| from matplotlib import pylab |
| 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 |
| |
| CC_XFORM_BOOST_B = [1, 0, 0, |
| 0, 1, 0, |
| 0, 0, 2] # blue channel 2x |
| CC_XFORM_UNITY = [1, 0, 0, |
| 0, 1, 0, |
| 0, 0, 1] # all channels equal |
| 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 |
| RAW_GAIN_BOOST_R = [2, 1, 1, 1] # red channel 2x |
| RAW_GAIN_UNITY = [1, 1, 1, 1] # all channels equal |
| RGB_DIFF_THRESH = 0.1 # threshold for differences in asserts |
| RGB_RANGE_THRESH = 0.2 # 0.2 < mean < 0.8 to avoid dark or saturated imgs |
| |
| |
| class ParamColorCorrectionTest(its_base_test.ItsBaseTest): |
| """Test that the android.colorCorrection.* params are applied when set. |
| |
| Takes shots with different transform and gains values, and tests that |
| they look correspondingly different. The transform and gains are chosen |
| to make the output go redder or bluer. |
| |
| Uses a linear tonemap. |
| """ |
| |
| def test_param_color_correction(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) and |
| not camera_properties_utils.mono_camera(props)) |
| |
| # Load chart for scene |
| its_session_utils.load_scene( |
| cam, props, self.scene, self.tablet, self.chart_distance) |
| |
| # Define format |
| sync_latency = camera_properties_utils.sync_latency(props) |
| largest_yuv = capture_request_utils.get_largest_yuv_format(props) |
| match_ar = (largest_yuv['width'], largest_yuv['height']) |
| fmt = capture_request_utils.get_smallest_yuv_format( |
| props, match_ar=match_ar) |
| |
| # Define baseline request |
| e, s = target_exposure_utils.get_target_exposure_combos( |
| log_path, cam)['midSensitivity'] |
| req = capture_request_utils.manual_capture_request(s, e, 0.0, True, props) |
| req['android.colorCorrection.mode'] = 0 |
| |
| # Define transforms |
| transforms = [capture_request_utils.int_to_rational(CC_XFORM_UNITY), |
| capture_request_utils.int_to_rational(CC_XFORM_UNITY), |
| capture_request_utils.int_to_rational(CC_XFORM_BOOST_B)] |
| |
| # Define RAW gains: |
| gains = [RAW_GAIN_UNITY, |
| RAW_GAIN_BOOST_R, |
| RAW_GAIN_UNITY] |
| |
| # Capture requests: |
| # 1. With unit gains, and identity transform. |
| # 2. With a higher red gain, and identity transform. |
| # 3. With unit gains, and a transform that boosts blue. |
| r_means = [] |
| g_means = [] |
| b_means = [] |
| capture_idxs = range(len(transforms)) |
| for i in capture_idxs: |
| req['android.colorCorrection.transform'] = transforms[i] |
| req['android.colorCorrection.gains'] = gains[i] |
| cap = its_session_utils.do_capture_with_latency( |
| cam, req, sync_latency, fmt) |
| img = image_processing_utils.convert_capture_to_rgb_image(cap) |
| image_processing_utils.write_image(img, '%s_req=%d.jpg' % ( |
| os.path.join(log_path, NAME), i)) |
| 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) |
| r_means.append(rgb_means[0]) |
| g_means.append(rgb_means[1]) |
| b_means.append(rgb_means[2]) |
| ratios = [rgb_means[0] / rgb_means[1], rgb_means[2] / rgb_means[1]] |
| logging.debug('Means: %s, Ratios: %s', str(rgb_means), str(ratios)) |
| |
| # Draw a plot |
| pylab.figure(NAME) |
| for ch, means in enumerate([r_means, g_means, b_means]): |
| pylab.plot(capture_idxs, means, '-'+'rgb'[ch]+'o') |
| pylab.xticks(capture_idxs) |
| pylab.ylim([0, 1]) |
| pylab.title(NAME) |
| pylab.xlabel('Cap Index [Unity, R boost, B boost]') |
| pylab.ylabel('RGB patch means') |
| matplotlib.pyplot.savefig( |
| '%s_plot_means.png' % os.path.join(log_path, NAME)) |
| # Ensure that image is not clamped to white/black. |
| if not all(RGB_RANGE_THRESH < g_means[i] < 1.0-RGB_RANGE_THRESH |
| for i in capture_idxs): |
| raise AssertionError('Image too dark/bright! Check setup.') |
| |
| # Expect G0 == G1 == G2, R0 == 0.5*R1 == R2, B0 == B1 == 0.5*B2 |
| # assert planes in caps expected to be equal |
| if abs(g_means[1] - g_means[0]) > RGB_DIFF_THRESH: |
| raise AssertionError('G[0] vs G[1] too different. ' |
| f'[0]: {g_means[0]:.3f}, [1]: {g_means[1]:.3f}') |
| if abs(g_means[2] - g_means[1]) > RGB_DIFF_THRESH: |
| raise AssertionError('G[1] vs G[2] too different. ' |
| f'[1]: {g_means[1]:.3f}, [2]: {g_means[2]:.3f}') |
| if abs(r_means[2] - r_means[0]) > RGB_DIFF_THRESH: |
| raise AssertionError('R[0] vs R[2] too different. ' |
| f'[0]: {r_means[0]:.3f}, [2]: {r_means[2]:.3f}') |
| if abs(b_means[1] - b_means[0]) > RGB_DIFF_THRESH: |
| raise AssertionError('B[0] vs B[1] too different. ' |
| f'[0]: {b_means[0]:.3f}, [1]: {b_means[1]:.3f}') |
| |
| # assert boosted planes in caps |
| if abs(r_means[1] - 2*r_means[0]) > RGB_DIFF_THRESH: |
| raise AssertionError('R[1] not boosted enough or too much. ' |
| f'[0]: {r_means[0]:.4f}, [1]: {r_means[1]:.4f}') |
| if abs(b_means[2] - 2*b_means[0]) > RGB_DIFF_THRESH: |
| raise AssertionError('B[2] not boosted enough or too much. ' |
| f'[0]: {b_means[0]:.4f}, [2]: {b_means[2]:.4f}') |
| |
| |
| if __name__ == '__main__': |
| test_runner.main() |
| |