def gridIt(image, component_dictionary, step=1): #print len(component_dictionary), 'len' gridcordinates = [] for entry in component_dictionary: tmpgridcondinates = [] color = component_dictionary[entry][0] #print color, 'color' component = component_dictionary[entry][1] points = 0 rect = component.rect lower_x = rect.x lower_y = rect.y upper_x = lower_x + rect.width upper_y = lower_y + rect.height #print lower_x, 'lower_x' #print upper_x, 'upper_x' #print step, 'step' #print lower_y, 'lower_y' #print upper_y, 'upper_y' for i in range(lower_x, upper_x, step): for j in range(lower_y, upper_y, step): if lib.isSameColor(color, image[j][i]): points = points + 1 tmpgridcondinates.append(cv.cvPoint(i, j)) gridcordinates.append(tmpgridcondinates) #print points, 'points' return gridcordinates
def floodFillBetweenPoints(out, lo, up, line, component_dict):
"""Floofill the image at point x,y whit are lower and upper thres hold namt lo and up
Start and stop point is the point that the def runs from to"""
#Sets the flag
flags = 4 + (255 << 8) + cv.CV_FLOODFILL_FIXED_RANGE
# Set the region to None, as we haven't found any yet
comp = None
(p1, p2) = line.getPoints()
if p1.x == p2.x:
# Initialize the seed and set deltas for increasing the seed
dx = 0
dy = 1
min = p1.y
max = p2.y - 1
elif p1.y == p2.y:
# Initialize the seed and set deltas for increasing the seed
dx = 1
dy = 0
min = p1.x
max = p2.x - 1
else:
raise lib.OrientationException("Unknown orientation")
seed = p1
# Get a new color that is not in the component dictionary
color = lib.getRandomColor()
inDict = colorString(color) in component_dict
while inDict:
color = lib.getRandomColor(color)
inDict = colorString(color) in component_dict
#Color between start_point+1 and point-1
#Tmp is the tims we find new color that lie in component_dict.
#This giv are indekeder that telle os have mots time we save whit the check
for i in range(min, max):
seed = cv.cvPoint(seed.x + dx, seed.y + dy)
#Check if the color of the next pixel equals color
if not (lib.isSameColor(out[seed.y][seed.x], color)):
#Check if the color of the next pixel are in component_dict
if not (colorString(out[seed.y][seed.x]) in component_dict):
comp = cv.CvConnectedComp()
cv.cvFloodFill(out, seed, color, cv.CV_RGB(lo,lo,lo), cv.CV_RGB(up,up,up),comp)# ,flags, None);
# Color the pixel again to make sure we return the entire region
cv.cvFloodFill(out, seed, color, cv.CV_RGB(lo,lo,lo), cv.CV_RGB(up,up,up),comp)# ,flags, None);
# Put the results in the component dictionary if we have found a region
if not (comp is None):
component_dict[colorString(color)] = (color, comp)
def naiveLineScanner(edgeImage, line):
"""Scan for edges along a line in a edge-detected image
This is _very_ naive
Traverse a line, put the coordinate in a list if the pixel is white
"""
# Get the points from the line
(p1, p2) = line.getPoints()
# We check the direction of the line then
# get the appropriate row or column.
# XXX: Any smarter way around this problem??
if p1.y == p2.y:
# Get the row, defined by y
dx = 1
dy = 0
slice = edgeImage[p1.y]
elif p1.x == p2.x:
# Get the column, defined by x
dx = 0
dy = 1
slice = edgeImage[:,p1.x]
else:
raise lib.OrientationException("The orientation is f****d up")
p = p1
points = []
# Now we can traverse every point in the row/column
for point in slice:
thisColor = cv.CV_RGB(int(point[0]), int(point[1]), int(point[2]))
if not lib.isSameColor(lib.COL_BLACK, thisColor):
# Save this point
points.append(p)
# Update the coordinate
p = (cv.cvPoint(p.x + dx, p.y + dy))
return points
