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Lab2RGB_b: bit-exactness enabled for all modes; non-vectorized code fixed to comply with vectorized

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This commit is contained in:
Rostislav Vasilikhin 2017-08-15 18:15:13 +03:00
parent f5dff87242
commit 5ea1c72291
1 changed files with 5 additions and 5 deletions
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10
modules/imgproc/src/color.cpp
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@ -6771,7 +6771,10 @@ struct Lab2RGBinteger
//float fxz[] = { ai / 500.0f + fy, fy - bi / 200.0f };
int adiv, bdiv;
adiv = aa*BASE/500 - 128*BASE/500, bdiv = bb*BASE/200 - 128*BASE/200;
//adiv = aa*BASE/500 - 128*BASE/500, bdiv = bb*BASE/200 - 128*BASE/200;
//approximations with reasonable precision
adiv = ((5*aa*53687 + (1 << 7)) >> 13) - 128*BASE/500;
bdiv = (( bb*41943 + (1 << 4)) >> 9) - 128*BASE/200+1;
int ifxz[] = {ify + adiv, ify - bdiv};
@ -7104,8 +7107,6 @@ struct Lab2RGB_b
const float* _whitept, bool _srgb )
: fcvt(3, _blueIdx, _coeffs, _whitept, _srgb ), icvt(_dstcn, _blueIdx, _coeffs, _whitept, _srgb), dstcn(_dstcn)
{
useBitExactness = (!_coeffs && !_whitept && _srgb && enableBitExactness);
#if CV_NEON
v_scale_inv = vdupq_n_f32(100.f/255.f);
v_scale = vdupq_n_f32(255.f);
@ -7162,7 +7163,7 @@ struct Lab2RGB_b
void operator()(const uchar* src, uchar* dst, int n) const
{
if(useBitExactness)
if(enableBitExactness)
{
icvt(src, dst, n);
return;
@ -7328,7 +7329,6 @@ struct Lab2RGB_b
__m128i v_zero;
bool haveSIMD;
#endif
bool useBitExactness;
int dstcn;
};