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Add explicit memory cleanup after image generation operations #181

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Copilot Dec 24, 2025
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Add memory cleanup after image generation to prevent RAM drain
Copilot Dec 24, 2025
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3 changes: 3 additions & 0 deletions pingmapper/class_portstarObj.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1265,6 +1265,9 @@ def _depthZheng(self,i,tileFile):
del maxDepths, minDepths, avgDepths, Wp, portDepPixCrop, starDepPixCrop
del portDepPix, starDepPix
del model, self.bedpickModel ######## Not sure about this one...

# Force garbage collection to free memory
gc.collect()

# return #self
return portDepPixFinal, starDepPixFinal, i
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16 changes: 15 additions & 1 deletion pingmapper/class_sonObj.py
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Expand Up @@ -1192,6 +1192,10 @@ def _writeTiles(self,
projName = os.path.split(self.projDir)[-1] #to append project name to filename
imsave(os.path.join(outDir, projName+'_'+imgOutPrefix+'_'+channel+'_'+addZero+str(k)+tileFile), data, check_contrast=False)

# Clean up temporary data array to free memory
del data
gc.collect()

return

def _writeTilesPlot(self,
Expand Down Expand Up @@ -1253,6 +1257,9 @@ def _writeTilesPlot(self,
colored_data = plt.cm.get_cmap(self.sonogram_colorMap)(norm_data)
colored_data = (colored_data[:, :, :3] * 255).astype('uint8')
data = colored_data

# Clean up temporary arrays
del norm_data, colored_data

# imsave(outfile, data)

Expand All @@ -1262,7 +1269,10 @@ def _writeTilesPlot(self,
# imsave(outfile, data, check_contrast=False)

imsave(outfile, data, check_contrast=False)


# Clean up temporary data array to free memory
del data
gc.collect()

return

Expand Down Expand Up @@ -1549,6 +1559,10 @@ def resize_to_pingMax(img, cropMax):

win += to_stride

# Clean up large arrays to free memory
del a_img, b_img, movWin
gc.collect()

return


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16 changes: 15 additions & 1 deletion pingmapper/class_sonObj_nadirgaptest.py
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Expand Up @@ -1136,6 +1136,10 @@ def _writeTiles(self,
projName = os.path.split(self.projDir)[-1] #to append project name to filename
imsave(os.path.join(outDir, projName+'_'+imgOutPrefix+'_'+channel+'_'+addZero+str(k)+tileFile), data, check_contrast=False)

# Clean up temporary data array to free memory
del data
gc.collect()

return

def _writeTilesPlot(self,
Expand Down Expand Up @@ -1197,6 +1201,9 @@ def _writeTilesPlot(self,
colored_data = plt.cm.get_cmap(self.sonogram_colorMap)(norm_data)
colored_data = (colored_data[:, :, :3] * 255).astype('uint8')
data = colored_data

# Clean up temporary arrays
del norm_data, colored_data

# imsave(outfile, data)

Expand All @@ -1206,7 +1213,10 @@ def _writeTilesPlot(self,
# imsave(outfile, data, check_contrast=False)

imsave(outfile, data, check_contrast=False)


# Clean up temporary data array to free memory
del data
gc.collect()

return

Expand Down Expand Up @@ -1460,6 +1470,10 @@ def resize_to_pingMax(img, cropMax):

win += to_stride

# Clean up large arrays to free memory
del a_img, b_img, movWin
gc.collect()

return


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