def get_bounding_box(keyword, url, filename):
# get the image
img = Image(url)
# resize the image so things aren't so slow, if necessary
w, h = img.size()
if w > 1200 or h > 1200:
maxdim = max(w, h)
ratio = math.ceil(maxdim/800.0)
print " resizing..."
img = img.resize(w=int(w/ratio), h=int(h/ratio))
else:
ratio = 1
# get the canvas
disp = Display((800, 800))
# text overlay
textlayer = DrawingLayer(img.size())
textlayer.setFontSize(30)
cx, cy = 10, 10
for xoff in range(-2, 3):
for yoff in range(-2, 3):
textlayer.text(keyword, (cx + xoff, cy + yoff), color=Color.BLACK)
textlayer.text(keyword, (cx, cy), color=Color.WHITE)
# two points to declare a bounding box
point1 = None
point2 = None
while disp.isNotDone():
cursor = (disp.mouseX, disp.mouseY)
if disp.leftButtonUp:
if point1 and point2:
point1 = None
point2 = None
if point1:
point2 = disp.leftButtonUpPosition()
else:
point1 = disp.leftButtonUpPosition()
bb = None
if point1 and point2:
bb = disp.pointsToBoundingBox(point1, point2)
elif point1 and not point2:
bb = disp.pointsToBoundingBox(point1, cursor)
img.clearLayers()
drawlayer = DrawingLayer(img.size())
if bb:
drawlayer.rectangle((bb[0], bb[1]), (bb[2], bb[3]), color=Color.RED)
# keyboard commands
if pygame.key.get_pressed()[pygame.K_s]:
# skip for now
raise Skip()
elif pygame.key.get_pressed()[pygame.K_b]:
# mark it as an invalid picture
raise BadImage()
elif pygame.key.get_pressed()[pygame.K_RETURN]:
if point1 and point2:
bb = disp.pointsToBoundingBox(scale(ratio, point1), scale(ratio, point2))
return bb
elif not point1 and not point2:
bb = disp.pointsToBoundingBox((0, 0), (w, h))
return bb
drawlayer.line((cursor[0], 0), (cursor[0], img.height), color=Color.BLUE)
drawlayer.line((0, cursor[1]), (img.width, cursor[1]), color=Color.BLUE)
#drawlayer.circle(cursor, 2, color=Color.BLUE, filled=True)
img.addDrawingLayer(textlayer)
img.addDrawingLayer(drawlayer)
img.save(disp)
# main loop #
while not disp.isDone():
img = cam.getImage()
img = img.flipHorizontal() # just for my convenience - simulates mirror :)
if inVideoMode:
(orig_h, orig_w) = (img.height, img.width) # required for VideoStream
px = disp.mouseX
py = disp.mouseY
left_down = disp.leftButtonDownPosition() # grab coordinates for event press
left_up = disp.leftButtonUpPosition() # grab coordinates for event release
if left_down is not None: # left mouse button pressed
# start drawing rectangle
(lx, ly) = left_down
if left_up is not None: # left mouse button released
# stop drawing rectangle, go into zoom mode
(lx, ly) = (None, None)
inZoomMode = True if not inZoomMode else False # enter zooming mode
zoom = (sx, sy, w, h)
if inZoomMode:
img = img.crop(zoom[0], zoom[1], zoom[2], zoom[3])
