diff options
Diffstat (limited to 'apps/CameraITS/tests/inprog/test_ev_compensation.py')
-rw-r--r-- | apps/CameraITS/tests/inprog/test_ev_compensation.py | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/apps/CameraITS/tests/inprog/test_ev_compensation.py b/apps/CameraITS/tests/inprog/test_ev_compensation.py deleted file mode 100644 index f9b0cd3..0000000 --- a/apps/CameraITS/tests/inprog/test_ev_compensation.py +++ /dev/null @@ -1,71 +0,0 @@ -# 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. - -import its.image -import its.device -import its.objects -import os.path -import pylab -import matplotlib -import matplotlib.pyplot -import numpy - -def main(): - """Tests that EV compensation is applied. - """ - NAME = os.path.basename(__file__).split(".")[0] - - MAX_LUMA_DELTA_THRESH = 0.01 - AVG_LUMA_DELTA_THRESH = 0.001 - - with its.device.ItsSession() as cam: - props = cam.get_camera_properties() - cam.do_3a() - - # Capture auto shots, but with a linear tonemap. - req = its.objects.auto_capture_request() - req["android.tonemap.mode"] = 0 - req["android.tonemap.curveRed"] = (0.0, 0.0, 1.0, 1.0) - req["android.tonemap.curveGreen"] = (0.0, 0.0, 1.0, 1.0) - req["android.tonemap.curveBlue"] = (0.0, 0.0, 1.0, 1.0) - - evs = range(-4,5) - lumas = [] - for ev in evs: - req['android.control.aeExposureCompensation'] = ev - cap = cam.do_capture(req) - y = its.image.convert_capture_to_planes(cap)[0] - tile = its.image.get_image_patch(y, 0.45,0.45,0.1,0.1) - lumas.append(its.image.compute_image_means(tile)[0]) - - ev_step_size_in_stops = its.objects.rational_to_float( - props['android.control.aeCompensationStep']) - luma_increase_per_step = pow(2, ev_step_size_in_stops) - expected_lumas = [lumas[0] * pow(luma_increase_per_step, i) \ - for i in range(len(evs))] - - pylab.plot(evs, lumas, 'r') - pylab.plot(evs, expected_lumas, 'b') - matplotlib.pyplot.savefig("%s_plot_means.png" % (NAME)) - - luma_diffs = [expected_lumas[i] - lumas[i] for i in range(len(evs))] - max_diff = max(luma_diffs) - avg_diff = sum(luma_diffs) / len(luma_diffs) - print "Max delta between modeled and measured lumas:", max_diff - print "Avg delta between modeled and measured lumas:", avg_diff - assert(max_diff < MAX_LUMA_DELTA_THRESH) - assert(avg_diff < AVG_LUMA_DELTA_THRESH) - -if __name__ == '__main__': - main() |