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added colorband

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jens
2025-04-17 09:28:25 +02:00
parent d74edfc3c7
commit 7e2645dafc
5 changed files with 174 additions and 57 deletions
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.idea/chromakey.iml
Generated
+4 -2
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@@ -1,8 +1,10 @@
<?xml version="1.0" encoding="UTF-8"?>
<module type="PYTHON_MODULE" version="4">
<component name="NewModuleRootManager">
<content url="file://$MODULE_DIR$" />
<orderEntry type="inheritedJdk" />
<content url="file://$MODULE_DIR$">
<excludeFolder url="file://$MODULE_DIR$/.venv" />
</content>
<orderEntry type="jdk" jdkName="Python 3.12 (chromakey)" jdkType="Python SDK" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>
.idea/misc.xml
Generated
+4 -1
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@@ -1,6 +1,9 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" project-jdk-name="Python 3.8 (cv)" project-jdk-type="Python SDK" />
<component name="Black">
<option name="sdkName" value="Python 3.12 (chromakey)" />
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.idea/vcs.xml
Generated
+6
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@@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
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<mapping directory="" vcs="Git" />
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</project>
.idea/workspace.xml
Generated
+68 -54
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@@ -1,7 +1,16 @@
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<change afterPath="$PROJECT_DIR$/color_band.py" afterDir="false" />
<change beforePath="$PROJECT_DIR$/.idea/chromakey.iml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/chromakey.iml" afterDir="false" />
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@@ -14,19 +23,33 @@
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&quot;RunOnceActivity.git.unshallow&quot;: &quot;true&quot;,
&quot;SHARE_PROJECT_CONFIGURATION_FILES&quot;: &quot;true&quot;,
&quot;git-widget-placeholder&quot;: &quot;master&quot;,
&quot;last_opened_file_path&quot;: &quot;/home/jens/work/chromakey&quot;,
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}
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<module name="chromakey" />
<option name="ENV_FILES" value="" />
<option name="INTERPRETER_OPTIONS" value="" />
<option name="PARENT_ENVS" value="true" />
<envs>
@@ -38,7 +61,29 @@
<option name="ADD_CONTENT_ROOTS" value="true" />
<option name="ADD_SOURCE_ROOTS" value="true" />
<option name="SCRIPT_NAME" value="$PROJECT_DIR$/chromakey.py" />
<option name="PARAMETERS" value="-f $PROJECT_DIR$/chromatest.png" />
<option name="PARAMETERS" value="-f $PROJECT_DIR$/sample.png" />
<option name="SHOW_COMMAND_LINE" value="false" />
<option name="EMULATE_TERMINAL" value="false" />
<option name="MODULE_MODE" value="false" />
<option name="REDIRECT_INPUT" value="false" />
<option name="INPUT_FILE" value="" />
<method v="2" />
</configuration>
<configuration name="color_band" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
<module name="chromakey" />
<option name="ENV_FILES" value="" />
<option name="INTERPRETER_OPTIONS" value="" />
<option name="PARENT_ENVS" value="true" />
<envs>
<env name="PYTHONUNBUFFERED" value="1" />
</envs>
<option name="SDK_HOME" value="" />
<option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
<option name="IS_MODULE_SDK" value="true" />
<option name="ADD_CONTENT_ROOTS" value="true" />
<option name="ADD_SOURCE_ROOTS" value="true" />
<option name="SCRIPT_NAME" value="$PROJECT_DIR$/color_band.py" />
<option name="PARAMETERS" value="" />
<option name="SHOW_COMMAND_LINE" value="false" />
<option name="EMULATE_TERMINAL" value="false" />
<option name="MODULE_MODE" value="false" />
@@ -48,6 +93,7 @@
</configuration>
<configuration name="main" type="PythonConfigurationType" factoryName="Python" nameIsGenerated="true">
<module name="chromakey" />
<option name="ENV_FILES" value="" />
<option name="INTERPRETER_OPTIONS" value="" />
<option name="PARENT_ENVS" value="true" />
<envs>
@@ -69,14 +115,23 @@
</configuration>
<list>
<item itemvalue="Python.main" />
<item itemvalue="Python.color_band" />
<item itemvalue="Python.chromakey" />
</list>
<recent_temporary>
<list>
<item itemvalue="Python.color_band" />
<item itemvalue="Python.chromakey" />
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<option value="bundled-python-sdk-4f4e415b4190-aa17d162503b-com.jetbrains.pycharm.community.sharedIndexes.bundled-PC-243.26053.29" />
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@@ -88,52 +143,6 @@
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@@ -142,6 +151,11 @@
<line>8</line>
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color_band.py
+92
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@@ -0,0 +1,92 @@
from pickletools import uint8
import cv2 as cv
import numpy as np
from matplotlib import pyplot as plt
def key_ish(kid: int, color: np.array):
prg = [(1,2), (0,2), (0,1)]
res = 0
c = prg[kid]
ci1 = c[0]
ci2 = c[1]
c1 = color[ci1]
c2 = color[ci2]
k0_1 = color[kid]
k0_2 = color[kid]
k0_12 = color[kid]
s12 = c1 + c2
if c1 > 0:
k0_1 = color[kid] / c1
if c2 > 0:
k0_2 = color[kid] / c2
if s12 > 0:
k0_12 = color[kid] / s12
# if s12 > 2*c1 and s12 > 2*c2:
# res = k0_12
if c1 > c2:
res = k0_1
else:
res = k0_2
return res
def despill(src, key_color, mat: float):
result = np.copy(src)
result[:, :, 0] -= (1-mat)*key_color[:, :, 0]
result[:, :, 1] -= (1-mat)*key_color[:, :, 1]
result[:, :, 2] -= (1-mat)*key_color[:, :, 2]
return result
def main():
key_index = 1
key_bgr = np.float32([[[0, 0, 0]]])
key_bgr[:,:,key_index] = 1
orig = np.ones([200, 360, 3], dtype=np.float32)
for x, hn in enumerate(np.linspace(0, 1, 360)):
for y in range(200):
s = y/200
orig_hsv = np.float32([[[hn * 360, s, 1]]])
orig_bgr = cv.cvtColor(orig_hsv, cv.COLOR_HSV2BGR)
orig[y, x] = orig_bgr
cv.imshow("orig", orig)
k_tol = 0.3
k_boost = 1.5
_x = []
_y = []
pic = np.ones([200, 360, 3], dtype=np.float32)
mat = np.ones([200, 360, 1], dtype=np.float32)
for x, hn in enumerate(np.linspace(0, 1, 360)):
_x.append(x)
v = 0
for y in range(200):
s = y/200
spec_hsv = np.float32([[[hn * 360, s, 1]]])
spec_bgr = cv.cvtColor(np.array(spec_hsv, dtype=np.float32),cv.COLOR_HSV2BGR)
v0 = spec_bgr[0,0,:]
v1 = min(1.0, k_boost * (1.0 - min(1.0, k_tol*key_ish(key_index, v0))))
pic_hsv = np.float32([[[hn*360,s,v1]]])
pic_bgr = cv.cvtColor(pic_hsv,cv.COLOR_HSV2BGR)
pic_bgr = despill(pic_bgr, key_bgr, v1)
pic[y, x] = pic_bgr
mat[y, x] = v1
_y.append(v1)
print(mat)
cv.imshow("pic", pic)
cv.imshow("mat", mat)
plt.plot(_x, _y)
plt.grid()
# plt.show()
if __name__ == '__main__':
main()
ch = cv.waitKey()