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Searched refs:sigma (Results 1 – 13 of 13) sorted by relevance

/frameworks/rs/tests/java_api/ImageProcessing_jb/src/com/android/rs/image/
Dthreshold_half.rscript39 // g(x) = ( 1 / sqrt( 2 * pi ) * sigma) * e ^ ( -x^2 / 2 * sigma^2 )
41 // and sigma varies with radius.
42 // Based on some experimental radius values and sigma's
43 // we approximately fit sigma = f(radius) as
44 // sigma = radius * 0.4 + 0.6
46 // will resemble a box blur since with large sigma
48 half sigma = 0.4f * (half)radius + 0.6f;
54 half coeff1 = 1.0f / (sqrt( 2.0f * pi ) * sigma);
55 half coeff2 = - 1.0f / (2.0f * sigma * sigma);
Dthreshold.rscript39 // g(x) = ( 1 / sqrt( 2 * pi ) * sigma) * e ^ ( -x^2 / 2 * sigma^2 )
41 // and sigma varies with radius.
42 // Based on some experimental radius values and sigma's
43 // we approximately fit sigma = f(radius) as
44 // sigma = radius * 0.4 + 0.6
46 // will resemble a box blur since with large sigma
48 float sigma = 0.4f * (float)radius + 0.6f;
54 float coeff1 = 1.0f / (sqrt( 2.0f * pi ) * sigma);
55 float coeff2 = - 1.0f / (2.0f * sigma * sigma);
/frameworks/rs/tests/java_api/ImageProcessing/src/com/android/rs/image/
Dthreshold.rscript39 // g(x) = ( 1 / sqrt( 2 * pi ) * sigma) * e ^ ( -x^2 / 2 * sigma^2 )
41 // and sigma varies with radius.
42 // Based on some experimental radius values and sigma's
43 // we approximately fit sigma = f(radius) as
44 // sigma = radius * 0.4 + 0.6
46 // will resemble a box blur since with large sigma
48 float sigma = 0.4f * (float)radius + 0.6f;
54 float coeff1 = 1.0f / (sqrt( 2.0f * pi ) * sigma);
55 float coeff2 = - 1.0f / (2.0f * sigma * sigma);
/frameworks/rs/tests/java_api/ImageProcessing2/src/com/android/rs/image/
Dthreshold.rscript39 // g(x) = ( 1 / sqrt( 2 * pi ) * sigma) * e ^ ( -x^2 / 2 * sigma^2 )
41 // and sigma varies with radius.
42 // Based on some experimental radius values and sigma's
43 // we approximately fit sigma = f(radius) as
44 // sigma = radius * 0.4 + 0.6
46 // will resemble a box blur since with large sigma
48 float sigma = 0.4f * (float)radius + 0.6f;
54 float coeff1 = 1.0f / (sqrt( 2.0f * pi ) * sigma);
55 float coeff2 = - 1.0f / (2.0f * sigma * sigma);
/frameworks/base/libs/hwui/utils/
DBlur.cpp33 float Blur::convertSigmaToRadius(float sigma) { in convertSigmaToRadius() argument
34 return sigma > 0.5f ? (sigma - 0.5f) / BLUR_SIGMA_SCALE : 0.0f; in convertSigmaToRadius()
71 float sigma = legacyConvertRadiusToSigma(radius); in generateGaussianWeights() local
77 float coeff1 = 1.0f / (sqrt(2.0f * pi) * sigma); in generateGaussianWeights()
78 float coeff2 = -1.0f / (2.0f * sigma * sigma); in generateGaussianWeights()
DBlur.h31 static float convertSigmaToRadius(float sigma);
/frameworks/base/libs/hwui/jni/
DMaskFilter.cpp21 SkScalar sigma = SkBlurMask::ConvertRadiusToSigma(radius); in createBlur() local
22 SkMaskFilter* filter = SkMaskFilter::MakeBlur((SkBlurStyle)blurStyle, sigma).release(); in createBlur()
36 SkScalar sigma = SkBlurMask::ConvertRadiusToSigma(radius); in createEmboss() local
37 SkMaskFilter* filter = SkBlurMaskFilter::MakeEmboss(sigma, in createEmboss()
DPaint.cpp966 SkScalar sigma = android::uirenderer::Blur::convertRadiusToSigma(radius); in setShadowLayer() local
967 paint->setLooper(BlurDrawLooper::Make(color, cs.get(), sigma, {dx, dy})); in setShadowLayer()
/frameworks/native/services/sensorservice/
DFusion.h95 void update(const vec3_t& z, const vec3_t& Bi, float sigma);
DFusion.cpp495 void Fusion::update(const vec3_t& z, const vec3_t& Bi, float sigma) { in update() argument
508 const mat33_t R(sigma*sigma); in update()
/frameworks/rs/cpu_ref/
DrsCpuIntrinsicBlur.cpp75 float sigma = 0.4f * mRadius + 0.6f; in ComputeGaussianWeights() local
79 float coeff1 = 1.0f / (sqrtf(2.0f * pi) * sigma); in ComputeGaussianWeights()
80 float coeff2 = - 1.0f / (2.0f * sigma * sigma); in ComputeGaussianWeights()
/frameworks/base/location/java/android/location/
DLocation.java346 double sigma = 0.0; in computeDistanceAndBearing() local
365 sigma = Math.atan2(sinSigma, cosSigma); // (16) in computeDistanceAndBearing()
392 (sigma + C * sinSigma * in computeDistanceAndBearing()
402 results.mDistance = (float) (b * A * (sigma - deltaSigma)); in computeDistanceAndBearing()
/frameworks/base/startop/scripts/app_startup/
Danalyze_metrics.py185 sigma = col_2d.std()
187 ci = sc.norm.interval(percent, loc=mean, scale=sigma / np.sqrt(len(col_2d)))