tadded 256 color palette, still to be incorporated in GUI - cross-stitch - interactively turn images into patterns for cross stitching
(HTM) git clone git://src.adamsgaard.dk/cross-stitch
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(DIR) LICENSE
---
(DIR) commit 503df807a1d7659850deca687081e91fb672272e
(DIR) parent a6cb3cbb779bbf8269a85093e3e04e04601dc2eb
(HTM) Author: Anders Damsgaard <anders.damsgaard@geo.au.dk>
Date: Sat, 15 Feb 2014 21:11:56 +0100
added 256 color palette, still to be incorporated in GUI
Diffstat:
A 256-color-rgb.dat | 256 +++++++++++++++++++++++++++++++
A 256-color.dat | 256 +++++++++++++++++++++++++++++++
A convert-hex-to-rgb.py | 24 ++++++++++++++++++++++++
M cross-stitch.py | 20 ++++++++++++++++++++
4 files changed, 556 insertions(+), 0 deletions(-)
---
(DIR) diff --git a/256-color-rgb.dat b/256-color-rgb.dat
t@@ -0,0 +1,256 @@
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+215 255 215
+215 255 255
+255 0 0
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+255 0 175
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+255 95 215
+255 95 255
+255 135 0
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+255 135 215
+255 135 255
+255 175 0
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+255 175 175
+255 175 215
+255 175 255
+255 215 0
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+255 215 175
+255 215 215
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+255 255 0
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+255 255 255
+8 8 8
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+198 198 198
+208 208 208
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+228 228 228
+238 238 238
(DIR) diff --git a/256-color.dat b/256-color.dat
t@@ -0,0 +1,256 @@
+000000
+800000
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(DIR) diff --git a/convert-hex-to-rgb.py b/convert-hex-to-rgb.py
t@@ -0,0 +1,24 @@
+#!/usr/bin/env python
+import numpy
+
+_NUMERALS = '0123456789abcdefABCDEF'
+_HEXDEC = {v: int(v, 16) for v in (x+y for x in _NUMERALS for y in
+ _NUMERALS)}
+LOWERCASE, UPPERCASE = 'x', 'X'
+
+def rgb(triplet):
+ return (_HEXDEC[triplet[0:2]], _HEXDEC[triplet[2:4]],
+ _HEXDEC[triplet[4:6]])
+
+#hexlist = numpy.loadtxt('./256-color.dat')
+rgblist = numpy.empty((256,3))
+fin = open('./256-color.dat')
+i = 0
+for line in fin:
+ #print line,
+ rgbval = rgb(line)
+ #print rgbval
+ rgblist[i,:] = rgbval
+ i += 1
+
+numpy.savetxt('256-color-rgb.dat', rgblist, fmt='%d')
(DIR) diff --git a/cross-stitch.py b/cross-stitch.py
t@@ -14,6 +14,26 @@ import matplotlib.backends.backend_wxagg
import matplotlib.pyplot
import wx
+class Palette:
+ def __init__(self, type='256colors'):
+ if type == '256colors':
+ self.rgblist = numpy.loadtxt('./256-color-rgb.dat')
+
+ def nearest256color(self, rgbval):
+ ibest = -1
+ min_misfit2 = float(inf)
+ for i in range(self.rgblist):
+ palettecolor = self.rgblist[i]
+ misfit2 = (rgbval[0] - float(palettecolor[0]))**2 + \
+ (rgbval[1] - float(palettecolor[1]))**2 + \
+ (rgbval[2] - float(palettecolor[2]))**2
+ if misfit2 < min_misfit2:
+ ibest = i
+ min_misfit2 = misfit2
+ return numpy.array((palettecolor[ibest,0], palettecolor[ibest,1],
+ palettecolor[ibest,2]))
+
+
class CrossStitch:
def __init__(self):