mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
1.2 KiB
36 lines
1.2 KiB
// Copyright 2011 Google Inc. All Rights Reserved. |
|
// |
|
// Use of this source code is governed by a BSD-style license |
|
// that can be found in the COPYING file in the root of the source |
|
// tree. An additional intellectual property rights grant can be found |
|
// in the file PATENTS. All contributing project authors may |
|
// be found in the AUTHORS file in the root of the source tree. |
|
// ----------------------------------------------------------------------------- |
|
// |
|
// Alpha plane quantization utility |
|
// |
|
// Author: Vikas Arora (vikasa@google.com) |
|
|
|
#ifndef WEBP_UTILS_QUANT_LEVELS_H_ |
|
#define WEBP_UTILS_QUANT_LEVELS_H_ |
|
|
|
#include <stdlib.h> |
|
|
|
#include "../webp/types.h" |
|
|
|
#ifdef __cplusplus |
|
extern "C" { |
|
#endif |
|
|
|
// Replace the input 'data' of size 'width'x'height' with 'num-levels' |
|
// quantized values. If not NULL, 'sse' will contain the sum of squared error. |
|
// Valid range for 'num_levels' is [2, 256]. |
|
// Returns false in case of error (data is NULL, or parameters are invalid). |
|
int QuantizeLevels(uint8_t* const data, int width, int height, int num_levels, |
|
uint64_t* const sse); |
|
|
|
#ifdef __cplusplus |
|
} // extern "C" |
|
#endif |
|
|
|
#endif /* WEBP_UTILS_QUANT_LEVELS_H_ */
|
|
|