1 /*
2 * x3a_ciq_wavelet_tuning_handler.cpp - x3a Common IQ Wavelet denoise tuning handler
3 *
4 * Copyright (c) 2014-2015 Intel Corporation
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *
18 * Author: Zong Wei <wei.zong@intel.com>
19 */
20
21 #include "x3a_analyzer.h"
22 #include "x3a_ciq_tuning_handler.h"
23 #include "x3a_ciq_wavelet_tuning_handler.h"
24
25 namespace XCam {
26
27 typedef struct _X3aCiqWaveletTuningStaticData {
28 double analog_gain;
29 double hard_threshold;
30 double soft_threshold;
31 uint8_t decom_levels;
32 } X3aCiqWaveletTuningStaticData;
33
34 const X3aCiqWaveletTuningStaticData imx185_tuning[X3A_CIQ_GAIN_STEPS] = {
35 {1.0, 0.01, 1.0, 5},
36 {16.98, 0.02, 0.7, 5},
37 {49.55, 0.2, 0.5, 5},
38 {139.63, 0.3, 0.3, 5},
39 {X3A_CIQ_GAIN_MAX, 0.5, 0.2, 5},
40 };
41
X3aCiqWaveletTuningHandler()42 X3aCiqWaveletTuningHandler::X3aCiqWaveletTuningHandler ()
43 : X3aCiqTuningHandler ("X3aCiqWaveletTuningHandler")
44 {
45 }
46
~X3aCiqWaveletTuningHandler()47 X3aCiqWaveletTuningHandler::~X3aCiqWaveletTuningHandler ()
48 {
49 }
50
51 XCamReturn
analyze(X3aResultList & output)52 X3aCiqWaveletTuningHandler::analyze (X3aResultList &output)
53 {
54 XCamReturn ret = XCAM_RETURN_NO_ERROR;
55
56 const X3aCiqWaveletTuningStaticData* tuning = imx185_tuning;
57 if (NULL != _tuning_data) {
58 tuning = (X3aCiqWaveletTuningStaticData*)_tuning_data;;
59 }
60
61 XCam3aResultWaveletNoiseReduction config;
62 SmartPtr<X3aWaveletNoiseReduction> settings = new X3aWaveletNoiseReduction (XCAM_3A_RESULT_WAVELET_NOISE_REDUCTION);
63
64 int64_t et = get_current_exposure_time ();
65 double analog_gain = get_current_analog_gain ();
66 double max_analog_gain = get_max_analog_gain ();
67 XCAM_UNUSED (et);
68 XCAM_UNUSED (max_analog_gain);
69 XCAM_LOG_DEBUG ("get current AG = (%f), max AG = (%f), et = (%" PRId64 ")", analog_gain, max_analog_gain, et);
70
71 uint8_t i_curr = 0;
72 uint8_t i_prev = 0;
73 for (i_curr = 0; i_curr < X3A_CIQ_GAIN_STEPS; i_curr++) {
74 if (analog_gain <= tuning[i_curr].analog_gain) {
75 break;
76 }
77 i_prev = i_curr;
78 }
79 if (i_curr >= X3A_CIQ_GAIN_STEPS) {
80 i_curr = X3A_CIQ_GAIN_STEPS - 1;
81 }
82
83 //Calculate Wavelet denoise config
84 xcam_mem_clear (config);
85
86 /* [0]:soft threshold / [1]:hard threshold */
87 config.threshold[0] = linear_interpolate_p2 (tuning[i_prev].soft_threshold, tuning[i_curr].soft_threshold,
88 tuning[i_prev].analog_gain, tuning[i_curr].analog_gain, analog_gain);
89
90 config.threshold[1] = linear_interpolate_p2 (tuning[i_prev].hard_threshold, tuning[i_curr].hard_threshold,
91 tuning[i_prev].analog_gain, tuning[i_curr].analog_gain, analog_gain);
92
93 config.decomposition_levels = 1;
94
95 config.analog_gain = analog_gain / X3A_CIQ_GAIN_MAX;
96 XCAM_LOG_DEBUG ("Calculate Wavelet noise reduction config: soft threshold(%f), hard threshold(%f), decomposition levels(%d)",
97 config.threshold[0], config.threshold[1], config.decomposition_levels);
98
99 settings->set_standard_result (config);
100 output.push_back (settings);
101
102 return ret;
103 }
104
105 };
106