javax.imageio.IIOException: Can't read input file

Question

I am building a program that compresses a given image and saves it as a JPEG. This is the error message I get:

Exception in thread "main" javax.imageio.IIOException: Can't read input file!
at javax.imageio.ImageIO.read(Unknown Source)
at JPEGCompression.main(JPEGCompression.java:23)

Here is my main:

public class JPEGCompression {

public static void main(String[] args) throws IOException{

    String imageFile = "/tmp/garden.png";
    BufferedImage i = ImageIO.read(new File(imageFile)); // this line produces the error
    showImage("Original Image", i);

    compressAndShow(i, 0.7f);


}

@Quirliom wow it was that simple! That has worked, thank you :) — pacman4565, Nov 23 '13 at 19:22
Please add an answer to this question or accept the below answer if it was helpful. Right now this is not very helpful to others. — Gray, Jul 22 '15 at 21:43

score 0 · Answer 1 · edited Sep 29 '15 at 19:37

0

I have also met this problem. The answer is that the model of the picture is wrong. So you should change the model of the picture from 'CMYK' TO 'RGB'. CMYK is for printer, and RGB is for computer. You can use photoshop or imageMagick to get it done.

edited Sep 29 '15 at 19:37

Unihedron

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answered Sep 24 '15 at 09:28

yuanfang

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score -1 · Answer 2 · edited Mar 18 '14 at 22:14

-1

You have no checks for if the file exists / have permissions for the file, that would be my first debugging step.

Also try the following: String imageFile = "./tmp/garden.png";

I always put a . before my slash to tell it I'm talking about the current directory, though I don't think it is required.

edited Mar 18 '14 at 22:14

lucke84

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answered Nov 23 '13 at 21:13

user2718114

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`/` and `./` mean completely different things, and `./` can be simply removed, being merely redundant. – user207421 Oct 04 '16 at 03:44

javax.imageio.IIOException: Can't read input file

2 Answers2