OutputJPEG

Module used for writing an image (or sequences of images) to file(s). The files are saved in JPEG format. For a gray scale image, connect only the INTENSITY input. For a color image, connect all of RED, GREEN and BLUE input (but not INTENSITY). It is assumed that the values lies in the range 0..1. This can be adjusted with the scale factor which is multiplied with each intensity value.

Example XML definition

A simple example

  <module
      class = "OutputJPEG"
      name = "OutputJPEG"
      filename = "image%02d.jpg"
  />

Parameters

Name	Description	Type	Default
class	The class name for the module; must be "OutputJPEG".	string
name	The name of this instance of the module.	string
filename	File to write the output to. If a sequence will be produced %d must be included in the name. It will be replaced with the sequence number of the file. Standard C formats can be used, e. g. %02d will insert the number with two figures and an initial '0'.	string
scale	Factor to multiply each element of the input matrix with	float	1.0
suppress	Number of initial files to supress. Used to stop the write of the first images in a sequence before any output is available.	int	0
offset	Value to add to the file index	int	none
quality	Quality of the compression	int	100

Module Connections

Inputs

Name	Description
INTENSITY	The gray level image data to be written to the file
RED	The red channel image data to be written to the file
GREEN	The green channel image data to be written to the file
BLUE	The blue channel image data to be written to the file
WRITE	Signal to write or suppress a given image. If connected, an image will only actually be written if the value of the WRITE input is greter than 0. The file counter will still increase.

Bugs

If %d is not in the filename each new file will overwrite the previous. On Unix systems this is actually useful.

Author

Christian Balkenius
christian.balkenius@lucs.lu.se
Lund University Cognitive Science

Files

OutputJPEG.h
OutputJPEG.cc
OutputJPEG.ikc