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Favour integer operations when calculating DPI

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Andrew Murray 2021-08-02 22:09:35 +10:00
parent 8045ecceef
commit dab5721c34
1 changed files with 1 additions and 1 deletions
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src/PIL/Jpeg2KImagePlugin.py
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@ -132,7 +132,7 @@ def _res_to_dpi(num, denom, exp):
calculated as (num / denom) * 10^exp and stored in dots per meter, calculated as (num / denom) * 10^exp and stored in dots per meter,
to floating-point dots per inch.""" to floating-point dots per inch."""
if denom != 0: if denom != 0:
return num / denom * (10 ** exp) * 0.0254 return (254 * num * (10 ** exp)) / (10000 * denom)
def _parse_jp2_header(fp): def _parse_jp2_header(fp):