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Changing color in matlab

5 visualizaciones (últimos 30 días)
SSth
SSth el 28 de Sept. de 2023
Comentada: Walter Roberson el 29 de Sept. de 2023
I've attached an image herewith. I want to change the color from green to red. Thanks.
  1 comentario
SSth
SSth el 28 de Sept. de 2023
Thank you all. Is there a way I can change it to other color than RGB? like yellow, for example...

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Respuesta aceptada

Voss
Voss el 28 de Sept. de 2023
im = imread('xyz_converted.png');
im(:,:,[1 2]) = im(:,:,[2 1]); % swap the Red and Green channels
imshow(im)
  7 comentarios
SSth
SSth el 29 de Sept. de 2023
Why does some of my images have fourth channel. How to handle those? My images are in .tif and can't be converted to png or jpeg. So could not attach that.
Thanks
Walter Roberson
Walter Roberson el 29 de Sept. de 2023
You can zip the tiff and attach the zip.
TIFF files can have 4 channels under several circumstances:
  1. They might have an alpha channel. Tiff with alpha can generally be converted to png, if you are careful about the imwrite()
  2. They might be CMYK TIFF -- CMYK support is an important reason why TIFF was designed (even if I rarely see CMYK TIFF in practice, as those are mostly used in publishing)
  3. The 4th (and possibly additional) channels might be addtional spectra, most commonly NIR (Near Infrared). If you have included infrared you should typically be working with the Hyperspectral Imaging Library, https://www.mathworks.com/help/images/hyperspectral-image-processing.html
  4. TIFF are one of the most common file formats for use with multiple "layers" of data, such as having views from the air together with information about roads and maybe about sewers and maybe about power lines and maybe about income... In particular, geotiff extension is often used for those kind of tiff images.

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Más respuestas (2)

Pratham Shah
Pratham Shah el 28 de Sept. de 2023
I=imread("xyz_converted.png");
I(:,:,1)=I(:,:,2);
[m,n,~]=size(I);
I(:,:,2)=zeros(m,n);
imshow(I)
  1 comentario
SSth
SSth el 28 de Sept. de 2023
Thank you. Is there a way I can change it to other color than RGB? like yellow, for example...

Iniciar sesión para comentar.


Catalytic
Catalytic el 28 de Sept. de 2023
A = imread('xyz_converted.png');
[R,G,B] = imsplit(A);
B=cat(3,G, 0*R,0*B);
imshow(B)
  1 comentario
SSth
SSth el 28 de Sept. de 2023
Thank you. Is there a way I can change it to other color than RGB? like yellow, for example...

Iniciar sesión para comentar.

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