Searched defs:sigma (Results 1 - 4 of 4) sorted by relevance

/frameworks/rs/driver/
H A DrsdIntrinsicBlur.cpp40 // g(x) = ( 1 / sqrt( 2 * pi ) * sigma) * e ^ ( -x^2 / 2 * sigma^2 )
42 // and sigma varies with radius.
43 // Based on some experimental radius values and sigma's
44 // we approximately fit sigma = f(radius) as
45 // sigma = radius * 0.4 + 0.6
47 // will resemble a box blur since with large sigma
49 float sigma = 0.4f * cp->radius + 0.6f; local
53 float coeff1 = 1.0f / (sqrtf(2.0f * pi) * sigma);
54 float coeff2 = - 1.0f / (2.0f * sigma * sigm
[all...]
/frameworks/support/renderscript/v8/rs_support/driver/
H A DrsdIntrinsicBlur.cpp40 // g(x) = ( 1 / sqrt( 2 * pi ) * sigma) * e ^ ( -x^2 / 2 * sigma^2 )
42 // and sigma varies with radius.
43 // Based on some experimental radius values and sigma's
44 // we approximately fit sigma = f(radius) as
45 // sigma = radius * 0.4 + 0.6
47 // will resemble a box blur since with large sigma
49 float sigma = 0.4f * cp->radius + 0.6f; local
53 float coeff1 = 1.0f / (sqrtf(2.0f * pi) * sigma);
54 float coeff2 = - 1.0f / (2.0f * sigma * sigm
[all...]
/frameworks/native/services/sensorservice/
H A DFusion.cpp407 void Fusion::update(const vec3_t& z, const vec3_t& Bi, float sigma) { argument
420 const mat33_t R(sigma*sigma);
/frameworks/base/libs/hwui/
H A DFontRenderer.cpp632 // g(x) = ( 1 / sqrt( 2 * pi ) * sigma) * e ^ ( -x^2 / 2 * sigma^2 )
634 // and sigma varies with radius.
635 // Based on some experimental radius values and sigma's
636 // we approximately fit sigma = f(radius) as
637 // sigma = radius * 0.3 + 0.6
639 // will resemble a box blur since with large sigma
641 float sigma = 0.3f * (float) radius + 0.6f; local
647 float coeff1 = 1.0f / (sqrt( 2.0f * pi ) * sigma);
648 float coeff2 = - 1.0f / (2.0f * sigma * sigm
[all...]

Completed in 146 milliseconds