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Function to scale image

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Could someone kindly point out the syntax/ other error which is preventing my function to scale image from running properly?
function [scaledimage] = scalefunc(img, value)
scaledimage = value*img; %ensures that multiplication occurs element wise;
end
This is the output I am currently getting-
Not enough input arguments.
Error in scale (line 2)
scaledimage = value*img; %ensures that multiplication occurs element wise

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Accepted Answer

Sai Sri Pathuri
Sai Sri Pathuri on 30 May 2020
How did you call the function? I assume you didn't pass input arguments
It must be called with input arguments, like
[scaledimage] = scalefunc('Image.jpg', 10)

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Maitreyi Swaroop
Maitreyi Swaroop on 30 May 2020
>> scale
Error: File: scale.m Line: 6 Column: 1
This statement is not inside any function.
(It follows the END that terminates the definition of the function "scalefunc".)
Sai Sri Pathuri
Sai Sri Pathuri on 30 May 2020
Shift these lines to the above of function definition
img = imread('family.png');
imshow(scaledfunc(img, 10))
Currently, your file is a function and expects all statements to be inside function. Change it to a script by making above change
Maitreyi Swaroop
Maitreyi Swaroop on 30 May 2020
Got it! Thanks

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