Error using imadjust>checkRange (line 306) Function imadjust expected its second input argument, [LOW_IN; HIGH_IN] photo editing

hi every one , I am tray to do Photo editor but i have her eror , what the wrong?

Answer 1

[Image Analyst]

imadjust() does not work with RGB images, so it can't take scaling parameters for each color channel. If you want to brighten your RGB image for display, use rescale().

[duna saleh]

Error using vertcat
Dimensions of arrays being concatenated are not consistent.

I have same error

  app.TempEffect =rescale(app.Modified ,[app.LowR  app.LowG  app.LowB; app.HighB  app.HighG  app.HighR ],[]);

[Walter Roberson]

imadjust does work for rgb in R2020b, but possibly the user is using an earlier release.

[Walter Roberson]

that is the wrong calling sequence for rescale

https://www.mathworks.com/help/matlab/ref/rescale.html

   app.TempEffect = rescale(app.Modified ,reshape([app.LowR app.LowG app.LowB], [1,1,3]), reshape([app.HighB app.HighG app.HighR],[1,1,3]));

[duna saleh]

I am using 2020

[duna saleh]

;(

[Walter Roberson]

are you using R2020a or R2020b?

   lb = [app.LowR app.LowG app.LowB];
   assert(numel(lb) == 3, "lb unexpectedly has %d elements", numel(lb)) ;
  ub = [app.HighR app.HighG app.HighB];
  assert(numel(ub) == 3, "ub unexpectedly has %d elements", numel(ub)) ;
   app.TempEffect = rescale(app.Modified ,reshape([lb, [1,1,3]), reshape(ub,[1,1,3]));

I speculate that one of the slider Value is empty.

[duna saleh]

2020b

[Walter Roberson]

assert(isscalar(app.LowR), "LowR is size %s", mat2str(size (app.LowR)))

and similar for the other bounds

[DGM]

imadjust() does support RGB and full 2x3 limit specification for both lower and upper bounds, and it has for years prior to 2020. The following code was tested in R2009b:

A = imread('peppers.png');
B = imadjust(A,[0.1 0.2 0.3; 0.9 0.9 0.9],[0.1 0.2 0.3; 0.8 0.9 1],1);
imshow(B)

... but it won't work if the input image is single-channel and you give it overspecified limit parameters. Check your input images for class and depth and handle them accordingly.

A = imread('cameraman.tif');
B = imadjust(A,[0.1 0.2 0.3; 0.9 0.9 0.9],[0.1 0.2 0.3; 0.8 0.9 1],1);

Error using imadjust>checkRange
Function imadjust expected its second input argument, [LOW_IN; HIGH_IN]
to be a two-element vector.

Error in imadjust>parseInputs (line 266)
checkRange(lowhigh_in, imageType, 2,'[LOW_IN; HIGH_IN]');

Error in imadjust (line 105)
parseInputs(varargin{:});

It also doesn't support RGB inputs for the short (implicit lower bound) syntax. That requires the explicit use of stretchlim().