1 # Copyright 2014 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 os 16 import its.image 17 import its.device 18 import its.objects 19 20 21 def main(): 22 """Takes shots with different sensor crop regions. 23 """ 24 name = os.path.basename(__file__).split(".")[0] 25 26 # Regions specified here in x,y,w,h normalized form. 27 regions = [[0.0, 0.0, 0.5, 0.5], # top left 28 [0.0, 0.5, 0.5, 0.5], # bottom left 29 [0.1, 0.9, 0.5, 1.0]] # right side (top + bottom) 30 31 with its.device.ItsSession() as cam: 32 props = cam.get_camera_properties() 33 r = props['android.sensor.info.pixelArraySize'] 34 w = r['width'] 35 h = r['height'] 36 37 # Capture a full frame first. 38 reqs = [its.objects.auto_capture_request()] 39 print "Capturing img0 with the full sensor region" 40 41 # Capture a frame for each of the regions. 42 for i,region in enumerate(regions): 43 req = its.objects.auto_capture_request() 44 req['android.scaler.cropRegion'] = { 45 "left": int(region[0] * w), 46 "top": int(region[1] * h), 47 "right": int((region[0]+region[2])*w), 48 "bottom": int((region[1]+region[3])*h)} 49 reqs.append(req) 50 crop = req['android.scaler.cropRegion'] 51 print "Capturing img%d with crop: %d,%d %dx%d"%(i+1, 52 crop["left"],crop["top"], 53 crop["right"]-crop["left"],crop["bottom"]-crop["top"]) 54 55 cam.do_3a() 56 caps = cam.do_capture(reqs) 57 58 for i,cap in enumerate(caps): 59 img = its.image.convert_capture_to_rgb_image(cap) 60 crop = cap["metadata"]['android.scaler.cropRegion'] 61 its.image.write_image(img, "%s_img%d.jpg"%(name,i)) 62 print "Captured img%d with crop: %d,%d %dx%d"%(i, 63 crop["left"],crop["top"], 64 crop["right"]-crop["left"],crop["bottom"]-crop["top"]) 65 66 if __name__ == '__main__': 67 main() 68
