ReadJpegSEQ

Read compressed or uncompressed NorPix image sequences in MATLAB. This script can read all frames or a set reading window.

Read compressed or uncompressed NorPix image sequence in MATLAB.

This script can read all frames or a set reading window.

Index file will be used if available and named as the source file

(eg. test.seq.idx). Otherwise the script will skip through a compressed

sequence from the beginning (may take some time).

INPUTS

fileName: Char containing the full path to the sequence

frames: 1x2 double array of beginning and end frame

OUTPUTS

ImageCellArray: Cell array with images and timestamps of all allocated

frames.

headerInfo: Struct with header information (ImageWidth,

ImageHeight, ImageBitDepth, ImageBitDepthReal,

ImageSizeBytes, ImageFormat, AllocatedFrames,

Compression, HeaderVersion, HeaderSize, Description,

TrueImageSize, FrameRate).

EXAMPLES

Read all frames:

I = ReadJpegSEQ('C:\test.seq')

Read frames 2 to 13:

I = ReadJpegSEQ('C:\test.seq',[2 13])

Include sequence header information:

[I, headerInfo] = ReadJpegSEQ('C:\test.seq',[1 1])

Last modified 05.11.2021 by Paul Siefert, PhD

Goethe-University Frankfurt

[e-mail]

Based on the work of Brett Shoelson (Norpix2MATLAB_MarksMod.m)

Thanks to NorPix support for providing sequence information.

This code was tested with Norpix SEQ

8-bit monochrome 75% lossy jpeg compression (24.07.2018)

8-bit monochrome uncompressed (03.06.2019)

8-bit(24) BGR 75% lossy jpeg compressed (04.10.2021)

Code for RGB included but not tested!

Please report any bugs and improvement suggestions!