def __init__(self, video_src, paused=False):
self.cap = video.create_capture(video_src)
_, self.frame = self.cap.read()
cv2.imshow('frame', self.frame)
self.rect_sel = RectSelector('frame', self.onrect)
self.trackers = []
self.paused = paused
def __init__(self, src):
self.cap = video.create_capture(src, presets['book'])
self.frame = None
self.paused = False
self.tracker = PlaneTracker()
cv2.namedWindow('plane')
self.rect_sel = common.RectSelector('plane', self.on_rect)
def __init__(self, video_src):
self.cam = video.create_capture(video_src, presets['cube'])
self.cam.set(3, 320)
self.cam.set(4, 240)
ret, self.frame = self.cam.read()
cv2.namedWindow('camshift')
cv2.setMouseCallback('camshift', self.onmouse)
self.selection = None
self.drag_start = None
self.show_backproj = False
self.track_window = None
img = levels[-1]
for lev_img in levels[-2::-1]:
img = cv2.pyrUp(img, dstsize=getsize(lev_img))
img += lev_img
return np.uint8(np.clip(img, 0, 255))
if __name__ == '__main__':
import sys
print(__doc__)
try:
fn = sys.argv[1]
except:
fn = 0
cap = video.create_capture(fn)
leveln = 6
cv2.namedWindow('level control')
for i in xrange(leveln):
cv2.createTrackbar('%d' % i, 'level control', 5, 50, nothing)
while True:
ret, frame = cap.read()
pyr = build_lappyr(frame, leveln)
for i in xrange(leveln):
v = int(cv2.getTrackbarPos('%d' % i, 'level control') / 5)
pyr[i] *= v
res = merge_lappyr(pyr)
cv2.imshow('hsv_map', hsv_map)
cv2.namedWindow('hist', 0)
hist_scale = 10
def set_scale(val):
global hist_scale
hist_scale = val
cv2.createTrackbar('scale', 'hist', hist_scale, 32, set_scale)
try:
fn = sys.argv[1]
except:
fn = 0
cam = video.create_capture(
fn, fallback='synth:bg=../data/baboon.jpg:class=chess:noise=0.05')
while True:
flag, frame = cam.read()
cv2.imshow('camera', frame)
small = cv2.pyrDown(frame)
hsv = cv2.cvtColor(small, cv2.COLOR_BGR2HSV)
dark = hsv[..., 2] < 32
hsv[dark] = 0
h = cv2.calcHist([hsv], [0, 1], None, [180, 256], [0, 180, 0, 256])
h = np.clip(h * 0.005 * hist_scale, 0, 1)
vis = hsv_map * h[:, :, np.newaxis] / 255.0
cv2.imshow('hist', vis)
ESC - exit
'''
import cv2
from Playground import video
if __name__ == '__main__':
import sys
try:
video_src = sys.argv[1]
except:
video_src = 0
cam = video.create_capture(video_src)
mser = cv2.MSER_create()
while True:
ret, img = cam.read()
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
vis = img.copy()
regions = mser.detectRegions(gray)
print(regions)
hulls = [cv2.convexHull(p.reshape(-1, 1, 2)) for p in regions]
cv2.polylines(vis, hulls, 1, (0, 255, 0))
cv2.imshow('img', vis)
if 0xFF & cv2.waitKey(5) == 27:
break
cv2.destroyAllWindows()