MATLAB IMAGE ACQUISITION TOOLBOX - RELEASE NOTES Guide de l'utilisateur Page 410

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 574
  • Table des matières
  • DEPANNAGE
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 409
17 Functions — Alphabetical List
17-18
data = getdata(obj,n,type) returns n frames of data associated with the video
input object obj, where type is one of the text strings in the following table that specify
the data type used to store the returned data.
Type String Data Type
'uint8' Unsigned 8-bit integer
'uint16' Unsigned 16-bit integer
'uint32' Unsigned 32-bit integer
'single' Single precision
'double' Double precision
'native' Uses native data type. This is the default.
If type is not specified, 'native' is used as the default. If there is no MATLAB data
type that matches the object's native data type, getdata chooses a MATLAB data type
that preserves numerical accuracy. For example, the components of 12-bit RGB color
data would each be returned as uint8 data.
data = getdata(obj,n,type,format) returns n frames of data associated with the
video input object obj, where format is one of the text strings in the following table that
specify the MATLAB format of data.
Format String Description
'numeric' Returns data as an H-by-W-by-B-by-F array. This is the default
format if none is specified.
'cell' Returns data as an F-by-1 cell array of H-by-W-by-B matrices
[data,time] = getdata(...) returns time, an F-by-1 matrix, where F is the
number of frames returned in data. Each element of time indicates the relative time, in
seconds, of the corresponding frame in data, relative to the first trigger.
time = 0 is defined as the point at which data logging begins. When data logging
begins, the object's Logging property is set to 'On'. time is measured continuously with
respect to 0 until the acquisition stops. When the acquisition stops, the object's Running
property is set to 'Off'.
[data, time, metadata] = getdata(...) returns metadata, an F-by-1 array of
structures, where F is the number of frames returned in data. Each structure contains
Vue de la page 409
1 2 ... 405 406 407 408 409 410 411 412 413 414 415 ... 573 574

Commentaires sur ces manuels

Pas de commentaire