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/*
* Copyright 2015 The Etc2Comp Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <math.h>
namespace Etc
{
// ----------------------------------------------------------------------------------------------------
// return true if vertical line
bool Regression(float a_afX[], float a_afY[], unsigned int a_Points,
float *a_fSlope, float *a_fOffset);
inline float ConvertMSEToPSNR(float a_fMSE)
{
if (a_fMSE == 0.0f)
{
return INFINITY;
}
return 10.0f * log10f(1.0f / a_fMSE);
}
}
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