Multibandread function makes my uint8 image tingly
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Baris Demir
el 15 de Abr. de 2023
Comentada: Image Analyst
el 15 de Abr. de 2023
I have a uint8 multiband tif image. I'm using the 'multibandread' function in my code. But when I try display the image it becomes a tingly image. Here is the script I use to display my image:
image = multibandread('l7_ms.tif',[512, 512, 7],'uint8=>uint8',...
128,'bil','ieee-le',{'Band','Direct',[4 3 2]}); % Convert the multiband image to 3 band image
figure; imshow(image); title('CIR Composite'); % Display image
Here is my display output:

is there something wrong with my code? If so how do I fix it?
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Baris Demir
el 15 de Abr. de 2023
7 comentarios
DGM
el 15 de Abr. de 2023
Editada: DGM
el 15 de Abr. de 2023
This image appears to have 12 channels.
fname = 'l7_ms.tif';
inpict = imread(fname);
imfinfo(fname)
Filename: '/data/homebak/cad_and_projects/imagepooper/l7_ms.tif'
FileModDate: '14-Mar-2017 09:08:02'
FileSize: 48029304
Format: 'tif'
FormatVersion: []
Width: 2000
Height: 2000
BitDepth: 96
ColorType: 'grayscale'
FormatSignature: [73 73 42 0]
ByteOrder: 'little-endian'
NewSubFileType: 0
BitsPerSample: [8 8 8 8 8 8 8 8 8 8 8 8]
Compression: 'Uncompressed'
PhotometricInterpretation: 'BlackIsZero'
StripOffsets: [1×2000 double]
SamplesPerPixel: 12
RowsPerStrip: 1
StripByteCounts: [1×2000 double]
XResolution: []
YResolution: []
ResolutionUnit: 'Inch'
Colormap: []
PlanarConfiguration: 'Chunky'
TileWidth: []
TileLength: []
TileOffsets: []
TileByteCounts: []
Orientation: 1
FillOrder: 1
GrayResponseUnit: 0.0100
MaxSampleValue: [254 254 254 254 254 254 254 254 254 254 254 254]
MinSampleValue: [5 5 5 5 5 5 5 5 5 5 5 5]
Thresholding: 1
Offset: 48016624
ExtraSamples: [0 0 0 0 0 0 0 0 0 0 0]
SampleFormat: {1×12 cell}
ModelPixelScaleTag: [30 30 0]
ModelTiepointTag: [0 0 0 410000 3759000 0]
GeoKeyDirectoryTag: [1×60 double]
GeoDoubleParamsTag: [6.3782e+06 294.9787 0]
GeoAsciiParamsTag: 'UTM Zone 11, Northern Hemisphere|GCS Name = Clarke 1866|Datum = unknown|Ellipsoid = clrk66|Primem = Greenwich||'
% select three specific channels to form an RGB image
outpict = inpict(:,:,[4 3 2]);
imshow(outpict)

Image Analyst
el 15 de Abr. de 2023
You can tell imread() which image in the file you want to retrieve. I guess it does them all if you don't specify and then you can just show the ones you want, like you did.
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Image Analyst
el 15 de Abr. de 2023
Editada: Image Analyst
el 15 de Abr. de 2023
Possibly some of your parameters are wrong. But you forgot to attach your image so no one can check.
Since the image is a multi-page TIFF format, I suggest you use the imread to read in the different pages (band images).
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