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lstm: Small code optimisation (#1426)

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Replace float compare operation by integer compare operation
and avoid float division if it is not needed.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
This commit is contained in:
Stefan Weil 2018-03-25 21:04:15 +02:00 committed by zdenop
parent 365611f24a
commit c7c738a1e6
1 changed files with 2 additions and 3 deletions
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lstm/input.cpp
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@ -138,10 +138,9 @@ void Input::PreparePixInput(const StaticShape& shape, const Pix* pix,
int height = pixGetHeight(normed_pix);
int target_height = shape.height();
if (target_height == 1) target_height = shape.depth();
if (target_height == 0) target_height = height;
float im_factor = static_cast<float>(target_height) / height;
if (im_factor != 1.0f) {
if (target_height != 0 && target_height != height) {
// Get the scaled image.
float im_factor = static_cast<float>(target_height) / height;
Pix* scaled_pix = pixScale(normed_pix, im_factor, im_factor);
pixDestroy(&normed_pix);
normed_pix = scaled_pix;