faster rcnn修改demo.py保存网络中间结果
转自 https://blog.****.net/u010668907/article/details/51439503
faster rcnn用python版本https://github.com/rbgirshick/py-faster-rcnn
以demo.py中默认网络VGG16.
原本demo.py地址https://github.com/rbgirshick/py-faster-rcnn/blob/master/tools/demo.py
图有点多,贴一个图的本分结果出来:
上图是原图,下面第一张是网络中命名为“conv1_1”的结果图;第二张是命名为“rpn_cls_prob_reshape”的结果图;第三张是“rpnoutput”的结果图
看一下我修改后的代码:
- #!/usr/bin/env python
- # --------------------------------------------------------
- # Faster R-CNN
- # Copyright (c) 2015 Microsoft
- # Licensed under The MIT License [see LICENSE for details]
- # Written by Ross Girshick
- # --------------------------------------------------------
- """
- Demo script showing detections in sample images.
- See README.md for installation instructions before running.
- """
- import _init_paths
- from fast_rcnn.config import cfg
- from fast_rcnn.test import im_detect
- from fast_rcnn.nms_wrapper import nms
- from utils.timer import Timer
- import matplotlib.pyplot as plt
- import numpy as np
- import scipy.io as sio
- import caffe, os, sys, cv2
- import argparse
- import math
- CLASSES = ('__background__',
- 'aeroplane', 'bicycle', 'bird', 'boat',
- 'bottle', 'bus', 'car', 'cat', 'chair',
- 'cow', 'diningtable', 'dog', 'horse',
- 'motorbike', 'person', 'pottedplant',
- 'sheep', 'sofa', 'train', 'tvmonitor')
- NETS = {'vgg16': ('VGG16',
- 'VGG16_faster_rcnn_final.caffemodel'),
- 'zf': ('ZF',
- 'ZF_faster_rcnn_final.caffemodel')}
- def vis_detections(im, class_name, dets, thresh=0.5):
- """Draw detected bounding boxes."""
- inds = np.where(dets[:, -1] >= thresh)[0]
- if len(inds) == 0:
- return
- im = im[:, :, (2, 1, 0)]
- fig, ax = plt.subplots(figsize=(12, 12))
- ax.imshow(im, aspect='equal')
- for i in inds:
- bbox = dets[i, :4]
- score = dets[i, -1]
- ax.add_patch(
- plt.Rectangle((bbox[0], bbox[1]),
- bbox[2] - bbox[0],
- bbox[3] - bbox[1], fill=False,
- edgecolor='red', linewidth=3.5)
- )
- ax.text(bbox[0], bbox[1] - 2,
- '{:s} {:.3f}'.format(class_name, score),
- bbox=dict(facecolor='blue', alpha=0.5),
- fontsize=14, color='white')
- ax.set_title(('{} detections with '
- 'p({} | box) >= {:.1f}').format(class_name, class_name,
- thresh),
- fontsize=14)
- plt.axis('off')
- plt.tight_layout()
- #plt.draw()
- def save_feature_picture(data, name, image_name=None, padsize = 1, padval = 1):
- data = data[0]
- #print "data.shape1: ", data.shape
- n = int(np.ceil(np.sqrt(data.shape[0])))
- padding = ((0, n ** 2 - data.shape[0]), (0, 0), (0, padsize)) + ((0, 0),) * (data.ndim - 3)
- #print "padding: ", padding
- data = np.pad(data, padding, mode='constant', constant_values=(padval, padval))
- #print "data.shape2: ", data.shape
- data = data.reshape((n, n) + data.shape[1:]).transpose((0, 2, 1, 3) + tuple(range(4, data.ndim + 1)))
- #print "data.shape3: ", data.shape, n
- data = data.reshape((n * data.shape[1], n * data.shape[3]) + data.shape[4:])
- #print "data.shape4: ", data.shape
- plt.figure()
- plt.imshow(data,cmap='gray')
- plt.axis('off')
- #plt.show()
- if image_name == None:
- img_path = './data/feature_picture/'
- else:
- img_path = './data/feature_picture/' + image_name + "/"
- check_file(img_path)
- plt.savefig(img_path + name + ".jpg", dpi = 400, bbox_inches = "tight")
- def check_file(path):
- if not os.path.exists(path):
- os.mkdir(path)
- def demo(net, image_name):
- """Detect object classes in an image using pre-computed object proposals."""
- # Load the demo image
- im_file = os.path.join(cfg.DATA_DIR, 'demo', image_name)
- im = cv2.imread(im_file)
- # Detect all object classes and regress object bounds
- timer = Timer()
- timer.tic()
- scores, boxes = im_detect(net, im)
- for k, v in net.blobs.items():
- if k.find("conv")>-1 or k.find("pool")>-1 or k.find("rpn")>-1:
- save_feature_picture(v.data, k.replace("/", ""), image_name)#net.blobs["conv1_1"].data, "conv1_1")
- timer.toc()
- print ('Detection took {:.3f}s for '
- '{:d} object proposals').format(timer.total_time, boxes.shape[0])
- # Visualize detections for each class
- CONF_THRESH = 0.8
- NMS_THRESH = 0.3
- for cls_ind, cls in enumerate(CLASSES[1:]):
- cls_ind += 1 # because we skipped background
- cls_boxes = boxes[:, 4*cls_ind:4*(cls_ind + 1)]
- cls_scores = scores[:, cls_ind]
- dets = np.hstack((cls_boxes,
- cls_scores[:, np.newaxis])).astype(np.float32)
- keep = nms(dets, NMS_THRESH)
- dets = dets[keep, :]
- vis_detections(im, cls, dets, thresh=CONF_THRESH)
- def parse_args():
- """Parse input arguments."""
- parser = argparse.ArgumentParser(description='Faster R-CNN demo')
- parser.add_argument('--gpu', dest='gpu_id', help='GPU device id to use [0]',
- default=0, type=int)
- parser.add_argument('--cpu', dest='cpu_mode',
- help='Use CPU mode (overrides --gpu)',
- action='store_true')
- parser.add_argument('--net', dest='demo_net', help='Network to use [vgg16]',
- choices=NETS.keys(), default='vgg16')
- args = parser.parse_args()
- return args
- def print_param(net):
- for k, v in net.blobs.items():
- print (k, v.data.shape)
- print ""
- for k, v in net.params.items():
- print (k, v[0].data.shape)
- if __name__ == '__main__':
- cfg.TEST.HAS_RPN = True # Use RPN for proposals
- args = parse_args()
- prototxt = os.path.join(cfg.MODELS_DIR, NETS[args.demo_net][0],
- 'faster_rcnn_alt_opt', 'faster_rcnn_test.pt')
- #print "prototxt: ", prototxt
- caffemodel = os.path.join(cfg.DATA_DIR, 'faster_rcnn_models',
- NETS[args.demo_net][1])
- if not os.path.isfile(caffemodel):
- raise IOError(('{:s} not found.\nDid you run ./data/script/'
- 'fetch_faster_rcnn_models.sh?').format(caffemodel))
- if args.cpu_mode:
- caffe.set_mode_cpu()
- else:
- caffe.set_mode_gpu()
- caffe.set_device(args.gpu_id)
- cfg.GPU_ID = args.gpu_id
- net = caffe.Net(prototxt, caffemodel, caffe.TEST)
- #print_param(net)
- print '\n\nLoaded network {:s}'.format(caffemodel)
- # Warmup on a dummy image
- im = 128 * np.ones((300, 500, 3), dtype=np.uint8)
- for i in xrange(2):
- _, _= im_detect(net, im)
- im_names = ['000456.jpg', '000542.jpg', '001150.jpg',
- '001763.jpg', '004545.jpg']
- for im_name in im_names:
- print '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
- print 'Demo for data/demo/{}'.format(im_name)
- demo(net, im_name)
- #plt.show()
2.上面代码主要添加方法是:save_feature_picture,它会对网络测试的某些阶段的数据处理然后保存。
3.某些阶段是因为:if k.find("conv")>-1 or k.find("pool")>-1 or k.find("rpn")>-1这行代码(110行),保证网络层name有这三个词的才会被保存,因为其他层无法用图片
保存,如全连接(参数已经是二维的了)等层。
4.放开174行print_param(net)的注释,就可以看到网络参数的输出。
5.执行的最终结果 是在data/feature_picture产生以图片名字为文件夹名字的文件夹,文件夹下有以网络每层name为名字的图片。
6.另外部分网络的层name中有非法字符不能作为图片名字,我在代码的111行只是把‘字符/’剔除掉了,所以建议网络名字不要又其他字符。
图片下载和代码下载方式:
- git clone https://github.com/meihuakaile/faster-rcnn.git