| /frameworks/av/media/libcpustats/ |
| CentralTendencyStatistics.cpp | 52 double CentralTendencyStatistics::variance() const function in class:CentralTendencyStatistics
54 double variance; local
58 variance = mM2 / (mN - 1);
60 variance = NAN;
62 mVariance = variance;
65 variance = mVariance;
67 return variance;
74 stddev = sqrt(variance());
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| /external/linux-tools-perf/perf-3.12.0/tools/perf/util/ |
| stat.c | 44 double variance, variance_mean; local
49 variance = stats->M2 / (stats->n - 1);
50 variance_mean = variance / stats->n;
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| /frameworks/av/include/cpustats/ |
| CentralTendencyStatistics.h | 45 // return the variance of all samples so far
46 double variance() const;
65 // cached variance, and n at time of caching
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| /external/lldb/tools/lldb-perf/lib/ |
| Metric.cpp | 76 T variance; local
78 variance = M2 / n;
80 variance = M2 / (n - 1);
81 return sqrt(variance);
|
| /external/chromium_org/third_party/webrtc/test/ |
| statistics.cc | 31 double Statistics::Variance() const {
38 return sqrt(Variance());
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| statistics.h | 25 double Variance() const;
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| /cts/apps/CameraITS/tests/scene1/ |
| test_param_noise_reduction.py | 32 Also captures an image with low gain and NR off, and uses the variance
40 # Reference (baseline) variance for each of Y,U,V.
80 variance = its.image.compute_image_variances(tile)[0]
81 variances[j].append(variance / ref_variance[j])
91 # Check that the variance of the NR=0 image is higher than for the
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| test_dng_noise_model.py | 32 # defined as being within an absolute variance delta of 0.0005, or within
33 # 20% of the expected variance, whichever is larger; this is to allow the
79 # non-uniform lighting or vignetting doesn't affect the variance
87 # Calculate the expected variance based on the model, and the
88 # measured variance from the tile.
99 pylab.ylabel("Center patch variance")
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| /external/chromium_org/tools/auto_bisect/ |
| math_utils.py | 60 def Variance(values):
61 """Calculates the sample variance."""
67 variance = sum(squared_differences) / (len(values) - 1)
68 return variance
73 return math.sqrt(Variance(values))
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| ttest.py | 8 to use definitions of mean and variance from math_utils instead of numpy.
47 v1 = math_utils.Variance(sample1)
48 v2 = math_utils.Variance(sample2)
66 v1: Variance of sample 1.
67 v2: Variance of sample 2.
74 # If variance of both segments is zero, return some large t-value.
87 v1: Variance of sample 1.
88 v2: Variance of sample 2.
95 # When there's no variance in either sample, return 1.
|
| /external/chromium_org/chrome/test/perf/ |
| browser_perf_test.cc | 19 // Reduce performance test variance by disabling background networking.
|
| /external/chromium_org/third_party/webrtc/voice_engine/test/auto_test/standard/ |
| video_sync_test.cc | 58 // Computes the standard deviation by first estimating the sample variance
66 float variance = 0; local
68 variance += (*start - mean) * (*start - mean) / (num_elements - 1);
70 return sqrt(variance);
|
| /external/skia/tools/ |
| Stats.h | 29 double var; // Estimate of population variance.
|
| /cts/tests/tests/hardware/src/android/hardware/cts/helpers/ |
| SensorCtsHelperTest.java | 77 double variance = SensorCtsHelper.getVariance(values); local
78 assertEquals(2.5, variance, 0.00001);
81 variance = SensorCtsHelper.getVariance(values);
82 assertEquals(2.5, variance, 0.00001);
85 variance = SensorCtsHelper.getVariance(values);
86 assertEquals(10.0, variance, 0.00001);
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| /external/libvpx/libvpx/vp9/encoder/ |
| vp9_variance.c | 21 void variance(const uint8_t *src_ptr, function
174 variance(src_ptr, source_stride, ref_ptr, recon_stride, 64, 32, &var, &avg);
231 variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 64, &var, &avg);
288 variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 16, &var, &avg);
345 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 32, &var, &avg);
402 variance(src_ptr, source_stride, ref_ptr, recon_stride, 64, 64, &var, &avg);
415 variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 32, &var, &avg);
423 variance(src_ptr, source_stride, ref_ptr, ref_stride, 16, 16, sse, sum);
434 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
447 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 16, &var, &avg)
[all...] |
| /hardware/intel/common/omx-components/videocodec/libvpx_internal/libvpx/vp9/encoder/ |
| vp9_variance.c | 21 void variance(const uint8_t *src_ptr, function
174 variance(src_ptr, source_stride, ref_ptr, recon_stride, 64, 32, &var, &avg);
231 variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 64, &var, &avg);
288 variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 16, &var, &avg);
345 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 32, &var, &avg);
402 variance(src_ptr, source_stride, ref_ptr, recon_stride, 64, 64, &var, &avg);
415 variance(src_ptr, source_stride, ref_ptr, recon_stride, 32, 32, &var, &avg);
428 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
441 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 16, &var, &avg);
454 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 8, &var, &avg)
[all...] |
| /cts/apps/CameraITS/tests/scene0/ |
| test_jitter.py | 31 MAX_VAR_FRAME_DELTA = 0.01 # variance of frame deltas
51 print "Variance:", var
|
| /external/chromium_org/third_party/libvpx/source/libvpx/vp8/common/ |
| variance_c.c | 12 #include "variance.h"
34 static void variance( function
76 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
92 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 16, &var, &avg);
108 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 8, &var, &avg);
125 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 8, &var, &avg);
141 variance(src_ptr, source_stride, ref_ptr, recon_stride, 4, 4, &var, &avg);
157 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
|
| /external/libvpx/libvpx/vp8/common/ |
| variance_c.c | 12 #include "variance.h"
34 static void variance( function
76 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
92 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 16, &var, &avg);
108 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 8, &var, &avg);
125 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 8, &var, &avg);
141 variance(src_ptr, source_stride, ref_ptr, recon_stride, 4, 4, &var, &avg);
157 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
|
| /external/opencv/cvaux/src/ |
| cvbgfg_gaussmix.cpp | 79 icvMatchTest(...) assumes what all color channels component exhibit the same variance
120 //Rw is the learning rate for weight and Rg is leaning rate for mean and variance
126 //The list is maintained in sorted order using w/sqrt(variance) as a key
132 //v[n+1] = v[n] + Rg*((x[n+1] - u[n])*(x[n+1] - u[n])) - v[n]) variance
206 bg_model->g_point[n].g_values[0].variance[m] = var_init;
214 bg_model->g_point[n].g_values[k].variance[m] = var_init;
390 var_threshold += g_point->g_values[k].variance[m];
420 sum_d2 += (d*d) / (g_point->g_values[k].variance[m] * g_point->g_values[k].variance[m]);
452 g_point->g_values[k].variance[m] = g_point->g_values[k].variance[m]
[all...] |
| /hardware/intel/common/omx-components/videocodec/libvpx_internal/libvpx/vp8/common/ |
| variance_c.c | 12 #include "variance.h"
34 static void variance( function
76 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
92 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 16, &var, &avg);
108 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 8, &var, &avg);
125 variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 8, &var, &avg);
141 variance(src_ptr, source_stride, ref_ptr, recon_stride, 4, 4, &var, &avg);
157 variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
|
| /external/chromium_org/net/quic/congestion_control/ |
| time_loss_algorithm.h | 39 // TODO(ianswett): Ideally the RTT variance and the RTT would be used to
|
| /frameworks/base/media/mca/filterpacks/java/android/filterpacks/videoproc/ |
| BackDropperFilter.java | 132 // Variance threshold scale factor for large scale of hierarchy
134 // Variance threshold scale factor for medium scale of hierarchy
136 // Variance threshold scale factor for small scale of hierarchy
188 // Scale value for mapping variance distance to fit nicely to 0-1, 8-bit
190 // Scale value for mapping variance to fit nicely to 0-1, 8-bit
194 // Minimum variance (0-255 scale)
236 // Variance distance in luminance between current pixel and background model
237 "float gauss_dist_y(float y, float mean, float variance) {\n" +
238 " float dist = (y - mean) * (y - mean) / variance;\n" +
241 // Sum of variance distances in chroma between current pixel and backgroun
[all...] |
| /frameworks/base/tests/Camera2Tests/SmartCamera/SimpleCamera/src/androidx/media/filterfw/samples/simplecamera/ |
| ImageGoodnessFilter.java | 281 return BIG_SCORE_INC; // low variance, sharpness above the mean
306 return BIG_SCORE_INC; // low variance, underExposure below the mean
331 return BIG_SCORE_INC; // low variance, overExposure below the mean
356 return BIG_SCORE_INC; // low variance, contrast above the mean
381 return BIG_SCORE_INC; // low variance, colorfulness above the mean
406 return BIG_SCORE_INC; // low variance, brightness above the mean
|
| /art/runtime/base/ |
| histogram.h | 58 double Variance() const;
114 // Summation of the values entered. Used to calculate variance.
|
