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// Copyright (c) the JPEG XL Project Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#ifndef LIB_JXL_LINALG_H_
#define LIB_JXL_LINALG_H_
// Linear algebra.
#include "lib/jxl/base/compiler_specific.h"
#include "lib/jxl/image.h"
namespace jxl {
using ImageD = Plane<double>;
// A is symmetric, U is orthogonal, and A = U * Diagonal(diag) * Transpose(U).
void ConvertToDiagonal(const ImageD& A, ImageD* JXL_RESTRICT diag,
ImageD* JXL_RESTRICT U);
} // namespace jxl
#endif // LIB_JXL_LINALG_H_
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