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CoinMaker.py
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CoinMaker.py
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#!/usr/bin/python
#******************************************************************************
# Author: Daniel Loman
# Date written: 3/27/2016
#******************************************************************************
"""CoinMaker.
This script formats images into coin making molds
Usage:
CoinMaker.py [options]... (FRONTIMAGEFILENAME) (BACKIMAGEFILENAME)
Options:
-h -? --help Show this screen.
-v --version Show version.
-o OUTPUTFILENAME SetOutputFileName (Default = Output.png)
-s SCALEFACTOR Scale the input image by scalefactor
-d DIAMETER Set diameter of the coin (pixels)
-n Enable No Dithering
"""
import cv2
from docopt import docopt
import numpy as np
import os
import time
################################################################################
def DoesFileExist(FileName):
if not os.path.isfile(FileName):
raise FileNotFoundError(FileName)
################################################################################
def GetBlackAndWhiteImageFromFile(FileName, NoDithering):
Image = \
cv2.imread(FileName, cv2.IMREAD_GRAYSCALE)
Image = np.bitwise_not(Image)
if NoDithering:
return cv2.threshold(Image, 128, 255, cv2.THRESH_BINARY | cv2.THRESH_OTSU)[1]
else:
return Image
################################################################################
def ScaleImage(Image, ScaleFactor):
return cv2.resize(\
Image, \
(int(ScaleFactor * Image.shape[1]), int(ScaleFactor * Image.shape[0])))
################################################################################
def AddPadding(Image):
PaddingHeightTop = int(.55 * Image.shape[1])
PaddingHeightBottom = int(.15 * Image.shape[1])
PaddingWidth = int(.15 * Image.shape[0])
return cv2.copyMakeBorder(\
Image, \
PaddingHeightTop,\
PaddingHeightBottom, \
PaddingWidth, \
PaddingWidth, \
cv2.BORDER_CONSTANT, \
value=255), \
PaddingHeightTop, \
PaddingHeightBottom, \
PaddingWidth
################################################################################
def AddCircle(Image, Diameter):
InvertedMask = 255 * np.ones((Image.shape), np.uint8)
cv2.circle(Image, (Image.shape[1]/2, Image.shape[0]/2), Diameter, 0, 3)
cv2.circle(InvertedMask, (Image.shape[1]/2, Image.shape[0]/2), Diameter, 0, -1)
Mask = np.zeros((Image.shape), np.uint8)
cv2.circle(Mask, (Image.shape[1]/2, Image.shape[0]/2), Diameter, 1, -1)
return (Image * Mask) + InvertedMask
################################################################################
def DrawBorder(Image):
Height, Width = Image.shape
TopLeft = (1, 1)
TopRight = (Width - 1, 1)
BottomLeft = (1, Height - 1)
BottomRight = (Width - 1, Height - 1)
cv2.line(Image, TopLeft, TopRight, 0)
cv2.line(Image, TopLeft, BottomLeft, 0)
cv2.line(Image, TopRight, BottomRight, 0)
cv2.line(Image, BottomLeft, BottomRight, 0)
return Image
################################################################################
def AddVents(FrontImage, BackImage, Diameter):
OriginalHeight, OriginalWidth = FrontImage.shape
FrontImage = AddCircle(FrontImage, Diameter)
BackImage = AddCircle(BackImage, Diameter)
FrontImage, PaddingHeightTop, PaddingHeightBottom, PaddingWidth = AddPadding(FrontImage)
BackImage, PaddingHeightTop, PaddingHeightBottom, PaddingWidth = AddPadding(BackImage)
TopLeft = int(.35 * FrontImage.shape[1]), 1
TopRight = int(.65 * FrontImage.shape[1]), 1
Center = int(.5 * FrontImage.shape[1]), int(.5 * FrontImage.shape[0])
CoinCenter = (Center[0], PaddingHeightTop +(OriginalHeight/2))
Mask = np.zeros(FrontImage.shape, dtype=np.uint8)
#Draw White Cutout circle
cv2.circle(\
Mask, \
CoinCenter, \
Diameter, \
255, \
thickness= 1)
FrontImage += Mask
BackImage += Mask
#Fill Triangle to clear out circle inside vent
Triangle = np.ones(Mask.shape, dtype=np.uint8)
Triangle = cv2.fillConvexPoly(Mask, np.array([TopLeft, Center, TopRight]), 0)
#Add Vents
cv2.line(Mask, TopLeft, Center, 255)
cv2.line(Mask, TopRight, Center, 255)
cv2.line(Mask, TopRight, TopLeft, 255)
#Fill in inside of circle
cv2.circle(\
Mask, \
CoinCenter, \
Diameter -1, \
0, \
-1)
FrontImage = DrawBorder(FrontImage)
BackImage = DrawBorder(BackImage)
Mask = DrawBorder(Mask)
Mask = np.bitwise_not(Mask)
return FrontImage, BackImage, Mask
################################################################################
def CreateCoinAndSaveImages(FrontImage, BackImage, Diameter):
FrontImage, BackImage, Mask = AddVents(FrontImage, BackImage, Diameter)
FrontImage = cv2.flip(FrontImage, 1)
BackImage = cv2.flip(BackImage, 1)
CurrentTime = str(int(time.time()))
cv2.imwrite("static/img/" + CurrentTime + "Middle.png", Mask)
os.system(\
"autotrace --output-format svg --output-file static/img/" + \
CurrentTime + "Middle.svg --color-count 2 static/img/" + CurrentTime + "Middle.png")
cv2.imwrite("static/img/" + CurrentTime + "Front.png", FrontImage)
cv2.imwrite("static/img/" + CurrentTime + "Back.png", BackImage)
return CurrentTime
################################################################################
def MakeCoin(CommandLineArguments):
FrontFileName = CommandLineArguments["FRONTIMAGEFILENAME"]
DoesFileExist(FrontFileName)
BackFileName = CommandLineArguments["BACKIMAGEFILENAME"]
DoesFileExist(BackFileName)
ScaleFactor = 1
if len(CommandLineArguments['-s']):
ScaleFactor = float(CommandLineArguments['-s'][0])
FrontImage = ScaleImage(
GetBlackAndWhiteImageFromFile(FrontFileName, CommandLineArguments['-n']),
ScaleFactor)
BackImage = ScaleImage(
GetBlackAndWhiteImageFromFile(BackFileName, CommandLineArguments['-n']),
ScaleFactor)
if FrontImage.shape != BackImage.shape:
raise ValueError("Front Image and back Image must be the same size")
Diameter = FrontImage.shape[0]/2
if FrontImage.shape[1] < Diameter/2:
Diameter = FrontImage.shape[1]/2
if len(CommandLineArguments['-d']):
Diameter = int(CommandLineArguments['-d'][0])
return CreateCoinAndSaveImages(FrontImage, BackImage, Diameter)
################################################################################
################################################################################
if __name__ == "__main__":
CommandLineArguments = docopt(__doc__, version = 0.1)
MakeCoin(CommandLineArguments)
cv2.waitKey()