Multibandread function makes my uint8 image tingly

2023 4 15
2 个回答
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更新时间：2023 4 15
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0 个投票

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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 采纳的回答

Baris Demir
Baris Demir 2023-4-15

0 个投票

I couldn't upload my image due to its size. Do you know any way to make it's size smaller or different way to upload here?

7 个评论
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Image Analyst
Image Analyst 2023-4-15
If you zip it up will it work?
Did imread() work? Did you try it? Otherwise, how about read()?
Baris Demir
Baris Demir 2023-4-15
No it's still larger than the 5mb.
I tried it but it didn't worked. It gives an error:
Expected input number 1, I, to be one of these types:
double, single, uint8, uint16, uint32, uint64, int8, int16, int32, int64, logical
Instead its type was matlab.graphics.primitive.Image.
Image Analyst
Image Analyst 2023-4-15
What was the call to read() or imread() you used? For imread() the first argument should be the filename, not a number so I don't know what function was throwing that error that it wants a number. You forgot to give your latest code.
Perhaps you can put the image on your MATLAB or Google drive.
Baris Demir
Baris Demir 2023-4-15
编辑：Baris Demir 2023-4-15
Sorry you're right I forgot to upload my code. Here:
img=imread('l7_ms.tif');
figure; imshow(img); title('CIR Composite'); % Display image
And I upload it via Google dirve. Here is the link: https://drive.google.com/file/d/1sb7I6ITlVUBVeNTwXORLeQ0IN8NVa8Jc/view?usp=sharing
Baris Demir
Baris Demir 2023-4-15
编辑：Baris Demir 2023-4-15
Okay I figured it out it out. I decreased the bands using:
img=imread('l7_ms.tif');
img=img(:,:,1:3);
figure; imshow(img); title('CIR Composite'); % Display image
and I got an output.
Thanks for everything!
DGM
DGM 2023-4-15
编辑：DGM 2023-4-15
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
Image Analyst 2023-4-15
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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更多回答（1 个）

Image Analyst
Image Analyst 2023-4-15
编辑：Image Analyst 2023-4-15

0 个投票

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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