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imagesc is an Python package to create heatmaps in a easy way.

Project description


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  • imagesc is an Python package to create heatmaps. Various methods to create a heatmap are implemented, each with specific properties that can help to easily create your heatmap. The fast and clean method is optimized for speed, the cluster method provides clustering, the seaborn method contains many configuration settings, and finally, the plot as good as possible the imagesc from matlab.

Functions in imagesc

# X is your numpy array
fig  = imagesc.seaborn(X)
fig  = imagesc.cluster(X)
fig  =
fig  = imagesc.clean(X)
fig  = imagesc.plot(X)
status = imagesc.savefig(fig)
path = imagesc.d3(df)



  • Install imagesc from PyPI (recommended). imagesc is compatible with Python 3.6+ and runs on Linux, MacOS X and Windows.
  • It is distributed under the MIT license.


# Note that: seaborn is only required when using **seaborn** or **cluster** functions.
pip install -r requirements.txt

Installation from Pypi

pip install imagesc

Import imagesc package

import imagesc as imagesc


df = pd.DataFrame(np.random.randint(0, 100, size=(50, 50)))
imagesc.d3(df, vmax=1)


df = pd.DataFrame(np.random.randint(0,100,size=(10,20)))
A = imagesc.seaborn(df.values, df.index.values, df.columns.values)
B = imagesc.seaborn(df.values, df.index.values, df.columns.values, annot=True, annot_kws={"size": 12})
C = imagesc.seaborn(df.values, df.index.values, df.columns.values, annot=True, annot_kws={"size": 12}, cmap='rainbow')
D = imagesc.seaborn(df.values, df.index.values, df.columns.values, annot=True, annot_kws={"size": 12}, cmap='rainbow', linecolor='#ffffff')



  • Underlying implemented is based on clustermap
  • When you desire to cluster your heatmap
  • Default distance setting: metric="euclidean", linkage="ward" (can be changed)
  • Slow for large data sets
  • Grid is aligned to the cells
  • Possibilities to tweak
  • Possible arguments:
df = pd.DataFrame(np.random.randint(0,100,size=(10,20)))
fig_C1 = imagesc.cluster(df.values, df.index.values, df.columns.values)
fig_C2 = imagesc.cluster(df.values, df.index.values, df.columns.values, cmap='rainbow')
fig_C3 = imagesc.cluster(df.values, df.index.values, df.columns.values, cmap='rainbow', linecolor='#ffffff')
fig_C4 = imagesc.cluster(df.values, df.index.values, df.columns.values, cmap='rainbow', linecolor='#ffffff', linewidth=0)
imagesc.savefig(fig_C1, './docs/figs/cluster4.png')

C1 C2 C3 C4


df = pd.DataFrame(np.random.randint(0,100,size=(10,20)))
fig_F1 =, df.index.values, df.columns.values)
fig_F2 =, df.index.values, df.columns.values, grid=False)
fig_F3 =, df.index.values, df.columns.values, grid=False, cbar=False)
fig_F4 =, df.index.values, df.columns.values, grid=True, cbar=False)
fig_F5 =, df.index.values, df.columns.values, cmap='rainbow')
fig_F6 =, df.index.values, df.columns.values, cmap='rainbow', linewidth=0.5, grid=True)
imagesc.savefig(fig_C1, './docs/figs/fast1.png')

F1 F2 F3 F4 F5 F6


df = pd.DataFrame(np.random.randint(0,100,size=(10,20)))
fig_FC1 = imagesc.clean(df.values)
fig_FC2 = imagesc.clean(df.values, cmap='rainbow')
imagesc.savefig(fig_C1, './docs/figs/clean1.png')

F1 F2


df = pd.DataFrame(np.random.randint(0,100,size=(10,20)))
fig_M1 = imagesc.plot(df.values)
fig_M2 = imagesc.plot(df.values, cbar=False)
fig_M3 = imagesc.plot(df.values, cbar=False, axis=False)
fig_M4 = imagesc.plot(df.values, cbar=False, axis=True, linewidth=0.2)
fig_M5 = imagesc.plot(df.values, df.index.values, df.columns.values)
fig_M6 = imagesc.plot(df.values, df.index.values, df.columns.values, cbar=False, linewidth=0.2)
fig_M7 = imagesc.plot(df.values, df.index.values, df.columns.values, grid=True, cbar=False, linewidth=0.2)
fig_M8 = imagesc.plot(df.values, df.index.values, df.columns.values, grid=False, cbar=False, linewidth=0.2)
fig_M9 = imagesc.plot(df.values, df.index.values, df.columns.values, grid=True, cbar=False, linewidth=0.8, linecolor='#ffffff')
fig_M10 = imagesc.plot(df.values, df.index.values, df.columns.values, grid=True, cbar=False, linewidth=0.8, linecolor='#ffffff', cmap='rainbow')
imagesc.savefig(fig, './docs/figs/plot10.png')imagesc.savefig(fig_C1, './docs/figs/fast1.png')

M1 M2 M3 M4 M5 M6 M7 M8 M9 M10


import matplotlib.image as mpimg

fig = imagesc.clean(img)
# runtime 1.49

fig =, cbar=False, axis=False)
# runtime: 2.931 seconds

fig = imagesc.plot(img, linewidth=0, cbar=False)
# runtime: 11.042

**fast** **clean** **plot**


Please cite imagesc in your publications if this is useful for your research. Here is an example BibTeX entry:

  author={Erdogan Taskesen},



  • Erdogan Taskesen, github: erdogant
  • Contributions are welcome.
  • If you wish to buy me a Coffee for this work, it is very appreciated :)

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