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26 lines
606 B
Python
Executable File
26 lines
606 B
Python
Executable File
#!/usr/bin/env python3
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# Create C/C++ code for two lookup tables.
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import math
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# Size of static tables.
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kTableSize = 4096
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# Scale factor for float arg to int index.
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kScaleFactor = 256.0
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print("// Generated code with lookup tables")
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print('#include "functions.h"')
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print("namespace tesseract {")
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print("const double TanhTable[] = {")
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for i in range(kTableSize):
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print(" %a," % math.tanh(i / kScaleFactor))
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print("};")
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print("const double LogisticTable[] = {")
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for i in range(kTableSize):
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print(" %a," % (1 / (1 + math.exp(-i / kScaleFactor))))
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print("};")
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print("} // namespace tesseract.")
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