1 # Copyright 2013 The Android Open Source Project 2 # 3 # Licensed under the Apache License, Version 2.0 (the "License"); 4 # you may not use this file except in compliance with the License. 5 # You may obtain a copy of the License at 6 # 7 # http://www.apache.org/licenses/LICENSE-2.0 8 # 9 # Unless required by applicable law or agreed to in writing, software 10 # distributed under the License is distributed on an "AS IS" BASIS, 11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 # See the License for the specific language governing permissions and 13 # limitations under the License. 14 15 import its.image 16 import its.caps 17 import its.device 18 import its.objects 19 import os.path 20 import numpy 21 import matplotlib.pyplot 22 23 # Required for 3d plot to work 24 import mpl_toolkits.mplot3d 25 26 def main(): 27 """Test that valid data comes back in CaptureResult objects. 28 """ 29 global NAME, auto_req, manual_req, w_map, h_map 30 global manual_tonemap, manual_transform, manual_gains, manual_region 31 global manual_exp_time, manual_sensitivity, manual_gains_ok 32 33 NAME = os.path.basename(__file__).split(".")[0] 34 35 with its.device.ItsSession() as cam: 36 props = cam.get_camera_properties() 37 its.caps.skip_unless(its.caps.manual_sensor(props) and 38 its.caps.manual_post_proc(props) and 39 its.caps.per_frame_control(props)) 40 41 manual_tonemap = [0,0, 1,1] # Linear 42 manual_transform = its.objects.float_to_rational( 43 [-1.5,-1.0,-0.5, 0.0,0.5,1.0, 1.5,2.0,3.0]) 44 manual_gains = [1,1.5,2.0,3.0] 45 manual_region = [{"x":8,"y":8,"width":128,"height":128,"weight":1}] 46 manual_exp_time = min(props['android.sensor.info.exposureTimeRange']) 47 manual_sensitivity = min(props['android.sensor.info.sensitivityRange']) 48 49 # The camera HAL may not support different gains for two G channels. 50 manual_gains_ok = [[1,1.5,2.0,3.0],[1,1.5,1.5,3.0],[1,2.0,2.0,3.0]] 51 52 auto_req = its.objects.auto_capture_request() 53 auto_req["android.statistics.lensShadingMapMode"] = 1 54 55 manual_req = { 56 "android.control.mode": 0, 57 "android.control.aeMode": 0, 58 "android.control.awbMode": 0, 59 "android.control.afMode": 0, 60 "android.sensor.sensitivity": manual_sensitivity, 61 "android.sensor.exposureTime": manual_exp_time, 62 "android.colorCorrection.mode": 0, 63 "android.colorCorrection.transform": manual_transform, 64 "android.colorCorrection.gains": manual_gains, 65 "android.tonemap.mode": 0, 66 "android.tonemap.curve": {"red": manual_tonemap, 67 "green": manual_tonemap, 68 "blue": manual_tonemap}, 69 "android.control.aeRegions": manual_region, 70 "android.control.afRegions": manual_region, 71 "android.control.awbRegions": manual_region, 72 "android.statistics.lensShadingMapMode":1 73 } 74 75 print "Testing auto capture results" 76 lsc_map_auto = test_auto(cam, props) 77 print "Testing manual capture results" 78 test_manual(cam, lsc_map_auto, props) 79 print "Testing auto capture results again" 80 test_auto(cam, props) 81 82 # A very loose definition for two floats being close to each other; 83 # there may be different interpolation and rounding used to get the 84 # two values, and all this test is looking at is whether there is 85 # something obviously broken; it's not looking for a perfect match. 86 def is_close_float(n1, n2): 87 return abs(n1 - n2) < 0.05 88 89 def is_close_rational(n1, n2): 90 return is_close_float(its.objects.rational_to_float(n1), 91 its.objects.rational_to_float(n2)) 92 93 def draw_lsc_plot(w_map, h_map, lsc_map, name): 94 for ch in range(4): 95 fig = matplotlib.pyplot.figure() 96 ax = fig.gca(projection='3d') 97 xs = numpy.array([range(w_map)] * h_map).reshape(h_map, w_map) 98 ys = numpy.array([[i]*w_map for i in range(h_map)]).reshape( 99 h_map, w_map) 100 zs = numpy.array(lsc_map[ch::4]).reshape(h_map, w_map) 101 ax.plot_wireframe(xs, ys, zs) 102 matplotlib.pyplot.savefig("%s_plot_lsc_%s_ch%d.png"%(NAME,name,ch)) 103 104 def test_auto(cam, props): 105 # Get 3A lock first, so the auto values in the capture result are 106 # populated properly. 107 rect = [[0,0,1,1,1]] 108 mono_camera = its.caps.mono_camera(props) 109 cam.do_3a(rect, rect, rect, do_af=False, mono_camera=mono_camera) 110 111 cap = cam.do_capture(auto_req) 112 cap_res = cap["metadata"] 113 114 gains = cap_res["android.colorCorrection.gains"] 115 transform = cap_res["android.colorCorrection.transform"] 116 exp_time = cap_res['android.sensor.exposureTime'] 117 lsc_obj = cap_res["android.statistics.lensShadingCorrectionMap"] 118 lsc_map = lsc_obj["map"] 119 w_map = lsc_obj["width"] 120 h_map = lsc_obj["height"] 121 ctrl_mode = cap_res["android.control.mode"] 122 123 print "Control mode:", ctrl_mode 124 print "Gains:", gains 125 print "Transform:", [its.objects.rational_to_float(t) 126 for t in transform] 127 if props["android.control.maxRegionsAe"] > 0: 128 print "AE region:", cap_res['android.control.aeRegions'] 129 if props["android.control.maxRegionsAf"] > 0: 130 print "AF region:", cap_res['android.control.afRegions'] 131 if props["android.control.maxRegionsAwb"] > 0: 132 print "AWB region:", cap_res['android.control.awbRegions'] 133 print "LSC map:", w_map, h_map, lsc_map[:8] 134 135 assert(ctrl_mode == 1) 136 137 # Color correction gain and transform must be valid. 138 assert(len(gains) == 4) 139 assert(len(transform) == 9) 140 assert(all([g > 0 for g in gains])) 141 assert(all([t["denominator"] != 0 for t in transform])) 142 143 # Color correction should not match the manual settings. 144 assert(any([not is_close_float(gains[i], manual_gains[i]) 145 for i in xrange(4)])) 146 assert(any([not is_close_rational(transform[i], manual_transform[i]) 147 for i in xrange(9)])) 148 149 # Exposure time must be valid. 150 assert(exp_time > 0) 151 152 # Lens shading map must be valid. 153 assert(w_map > 0 and h_map > 0 and w_map * h_map * 4 == len(lsc_map)) 154 assert(all([m >= 1 for m in lsc_map])) 155 156 draw_lsc_plot(w_map, h_map, lsc_map, "auto") 157 158 return lsc_map 159 160 def test_manual(cam, lsc_map_auto, props): 161 cap = cam.do_capture(manual_req) 162 cap_res = cap["metadata"] 163 164 gains = cap_res["android.colorCorrection.gains"] 165 transform = cap_res["android.colorCorrection.transform"] 166 curves = [cap_res["android.tonemap.curve"]["red"], 167 cap_res["android.tonemap.curve"]["green"], 168 cap_res["android.tonemap.curve"]["blue"]] 169 exp_time = cap_res['android.sensor.exposureTime'] 170 lsc_obj = cap_res["android.statistics.lensShadingCorrectionMap"] 171 lsc_map = lsc_obj["map"] 172 w_map = lsc_obj["width"] 173 h_map = lsc_obj["height"] 174 ctrl_mode = cap_res["android.control.mode"] 175 176 print "Control mode:", ctrl_mode 177 print "Gains:", gains 178 print "Transform:", [its.objects.rational_to_float(t) 179 for t in transform] 180 print "Tonemap:", curves[0][1::16] 181 if props["android.control.maxRegionsAe"] > 0: 182 print "AE region:", cap_res['android.control.aeRegions'] 183 if props["android.control.maxRegionsAf"] > 0: 184 print "AF region:", cap_res['android.control.afRegions'] 185 if props["android.control.maxRegionsAwb"] > 0: 186 print "AWB region:", cap_res['android.control.awbRegions'] 187 print "LSC map:", w_map, h_map, lsc_map[:8] 188 189 assert(ctrl_mode == 0) 190 191 # Color correction gain and transform must be valid. 192 # Color correction gains and transform should be the same size and 193 # values as the manually set values. 194 assert(len(gains) == 4) 195 assert(len(transform) == 9) 196 assert( all([is_close_float(gains[i], manual_gains_ok[0][i]) 197 for i in xrange(4)]) or 198 all([is_close_float(gains[i], manual_gains_ok[1][i]) 199 for i in xrange(4)]) or 200 all([is_close_float(gains[i], manual_gains_ok[2][i]) 201 for i in xrange(4)])) 202 assert(all([is_close_rational(transform[i], manual_transform[i]) 203 for i in xrange(9)])) 204 205 # Tonemap must be valid. 206 # The returned tonemap must be linear. 207 for c in curves: 208 assert(len(c) > 0) 209 assert(all([is_close_float(c[i], c[i+1]) 210 for i in xrange(0,len(c),2)])) 211 212 # Exposure time must be close to the requested exposure time. 213 assert(is_close_float(exp_time/1000000.0, manual_exp_time/1000000.0)) 214 215 # Lens shading map must be valid. 216 assert(w_map > 0 and h_map > 0 and w_map * h_map * 4 == len(lsc_map)) 217 assert(all([m >= 1 for m in lsc_map])) 218 219 draw_lsc_plot(w_map, h_map, lsc_map, "manual") 220 221 if __name__ == '__main__': 222 main() 223 224
