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Special Forums News, Links, Events and Announcements Software Releases - RSS News libv4l 0.5.3 (Default branch)
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Old 10-27-2008
libv4l 0.5.3 (Default branch)
libv4l is a collection of libraries that adds a thin abstraction layer on top of video4linux2 (V4L2) devices. The purpose of this layer is to make it easy for application writers to support a wide variety of devices without having to write separate code for different devices in the same class. It consists of 3 different libraries. libv4lconvert offers functions to convert from any (known) pixel format to V4l2_PIX_FMT_BGR24 or V4l2_PIX_FMT_YUV420. libv4l1 offers the (deprecated) v4l1 API on top of v4l2 devices, independent of the drivers for those devices supporting v4l1 compatibility (which many v4l2 drivers do not). libv4l2 offers the v4l2 API on top of v4l2 devices, while adding for the application transparent libv4lconvert conversion where necessary. License: GNU Lesser General Public License (LGPL) Changes:
Temporary buffers for multiple conversion passes are no longer allocated on the stack. The most notable effect is that libv4l now no longer conflicts with Ekiga's large stack usage. Image

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fann_set_activation_steepness_layer

FANN_SET_ACTIVATION_STEEPNESS_LAYER(3)					 1				    FANN_SET_ACTIVATION_STEEPNESS_LAYER(3)

fann_set_activation_steepness_layer - Sets the activation steepness for all of the neurons in the supplied layer number

SYNOPSIS

       bool fann_set_activation_steepness_layer (resource  $ann, float	$activation_steepness, int  $layer)

DESCRIPTION

	Set the activation steepness for all of the neurons in layer number layer, counting the input layer as layer 0.

	It is not possible to set activation steepness for the neurons in the input layer.

PARAMETERS

	      o $ann
		-Neural network resource.

	      o $activation_steepness
		- The activation steepness.

	      o $layer
		- Layer number.

RETURN VALUES

       Returns TRUE on success, or FALSE otherwise.

SEE ALSO

       fann_set_activation_steepness(3),    fann_set_activation_steepness_hidden(3),   fann_set_activation_steepness_output(3),   fann_get_activa-
       tion_steepness(3), fann_set_activation_function(3).

PHP Documentation Group 										    FANN_SET_ACTIVATION_STEEPNESS_LAYER(3)