how to imshow(image,[]) in simulink

good afternoon everyone, please help me to solve this. i have a matlab code that run well and display matrix with imshow(image,[]) but it only shows black and white image in matrix viewer/ video viewer when i tried to transform it to matlab block in simulink. is there a way to display the image in simulink like using imshow(image,[]) in matlab. all images in attachtments. thanks for visiting this post.

[stozaki]

Do you use the 'Computer Vision Toolbox' ?

If you use the Computer Vision Toolbox, any sink block support image output and display on the Simulink canvas. Can you attach the image file you are importing to the figure?

I attached example model , but I don't know your input raw data.

[Walter Roberson]

Try using imagesc() and colormap(gray(256)) instead of imshow()

[vishnu]

yes stozaki, im using it and it displays 'live image' of img1 very well but the matrix (img2) was generated from iteration (of pixels' intensity between 0 and 1 by 0.1) and was not imported from any figure. img3 is image(Ix) in matlab. thank you for the file but could you please export it to older version (im still using version 8.7 (R2016a))? i cant open it :-)

[Mark]

Is there a way to use imshow() without computer vision toolbox?

[Walter Roberson]

Mark:

imshow is from Image Processing, not Computer Vision

Answer 1

[stozaki]

Hello vishnu,

I attached model made by R2016a. Please edit some parameters as needed.

Regards,

stozaki

[vishnu]

thank you very much

[stozaki]

Can you open the model on the R2016a and solve this problem?

[vishnu]

yes, thank you. i can open it by setting the sample time of the 'image from file' blocks into any number to display the image (im using R2016a and the default setting is inf).

[stozaki]

MATLAB functions and Simulink blocks are not always completely equivalent. Processing content may be slightly different. In that case, the designer will need to make adjustments as needed.

Best Regards,

stozaki

Answer 2

[Selva Karna]

check image processing & computer vision toolbox ,