matlab code for JPEG2000
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Can any one soon provide me matlab code for implementing JPEG2000 . Thank you in advance.
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Steven Lord
2018-11-14
0 个投票
6 个评论
N/A
2018-11-15
编辑：madhan ravi
2018-11-15
madhan ravi
2018-11-15
imwrite(X,'newImage.jp2')
Walter Roberson
2018-11-15
That should be accepted in current matlab . which release are you using ?
N/A
2018-11-15
N/A
2018-11-15
Walter Roberson
2018-11-15
No, I cannot assist you with that. See Legal Problems
更多回答（1 个）
N/A
2018-11-15
If possible then Can any one do it for me as I dont have new version.
It will be a great help, please do it.
I am attaching required files --
thank you in advance.
X = imread('C:\work\Lena.png');
imwrite(X,'newImage.jp2','jp2','Comment','My JPEG2000 file')
imfinfo('newImage.jp2')
imfinfo('Lena.png')
6 个评论
Walter Roberson
2018-11-15
编辑：Walter Roberson
2018-11-15
>> imfinfo('newImage.jp2')
ans =
struct with fields:
Filename: '/Users/roberson/MATLAB/4/429/429805/newImage.jp2'
FileModDate: '15-Nov-2018 12:22:28'
FileSize: 331669
Format: 'JP2'
FormatVersion: []
Width: 512
Height: 509
BitDepth: 24
ColorType: 'truecolor'
BitsPerSample: [8 8 8]
CodeBlockDims: [64 64]
CodestreamComponents: 3
CodestreamProfile: 'PROFILE2'
ColorSpace: 'sRGB'
Comments: {'My JPEG2000 file'}
ChannelDefinition: {3×3 cell}
ImageStartLocation: [1 1]
NumberOfTiles: 1
ProgressionOrder: 'LRCP: Layer, Resolution, Component, Position'
QualityLayers: 1
TileSize: [509 512]
WaveletDecompositionLevels: 4
WaveletKernel: '9x7'
WidthSubSampling: [1 1 1]
HeightSubSampling: [1 1 1]
>> imfinfo('index.png')
ans =
struct with fields:
Filename: '/Users/roberson/MATLAB/4/429/429805/index.png'
FileModDate: '15-Nov-2018 12:19:52'
FileSize: 236547
Format: 'png'
FormatVersion: []
Width: 512
Height: 509
BitDepth: 24
ColorType: 'truecolor'
FormatSignature: [137 80 78 71 13 10 26 10]
Colormap: []
Histogram: []
InterlaceType: 'none'
Transparency: 'none'
SimpleTransparencyData: []
BackgroundColor: []
RenderingIntent: []
Chromaticities: []
Gamma: 0.454549998044968
XResolution: []
YResolution: []
ResolutionUnit: []
XOffset: []
YOffset: []
OffsetUnit: []
SignificantBits: []
ImageModTime: []
Title: []
Author: []
Description: []
Copyright: []
CreationTime: []
Software: []
Disclaimer: []
Warning: []
Source: []
Comment: []
OtherText: []
Walter Roberson
2018-11-15
I notice the jp2 is larger than the png.
N/A
2018-11-15
Walter Roberson
2018-11-15
Walter Roberson
2018-11-15
编辑：Walter Roberson
2018-11-15
R2010a or later for JPEG 2000 support.
Your R14 (7.0.0) is over 14 years old. Time for you to upgrade.
N/A
2018-11-15
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