loadImage does not Load Image from data folder

Processing Beginners
1

2020-07-31T07:00:00Z
I am using the loadImage example, and definately have the image saved in the data folder of the active sketch.
Except for the web URL example below, I get the error message: “The file “moire.jpg” is missing or inaccessible, make sure the URL is valid or that the file has been added to your sketch and is readable. NullPointerException”

I suspect my path is wrong somehow, I have tried many more options than shown here.
I read that “the image file must be in the data folder of the current sketch.”
I quadruple checked & the image file is there in the data folder, and readable. Tried other file formats too.
Thanks in advance!
John

PImage img;
void setup() {
  
    dataPath("data/moire.jpg");
    println(dataPath(""));
    
//img = loadImage("data/moire.jpg");  // does not work
// img = loadImage("moire.jpg");        // does not work
// img = loadImage("C:\Users\john\Documents\Processing\moire3\data\moire.jpg");   // does not work
// img = loadImage(" http://www.cosmation.com/images/cosmationpostcard2lowres.jpg");  //  this works
}
void draw() {
  image(img, 0, 0);
}
2

LoadImage or loadImage?

3

It should work even without specifying the path.

Your 3rd option (where you wrote out the full path) doesn’t work because you used backslash instead of a forward slash. backslash signals an escape sequence.

I don’t know how your files are set up but this probably means something is named incorrectly. Check that:

  1. The data folder is named correctly
  2. The file is named correctly (This is case sensitive)
  3. You have the correct file extension (.png, .jpg etc)

I know that you may have already done all this (and if that’s the case I’m probably just frustrating you :relaxed:) . If there are no other visible problems I would just try it with a different picture. Try to isolate where exactly is the problem.

4

Thanks for your help.
Things I’ve tried before asking for help: different images, different file formats, spelling & case options such as: PNG,JPG, TGA, . jpg, JPG, JPEG.
Recreated sketch, saved to new folder. Made data folder and added image manually.
Recreated sketch, saved to new folder. Dragged image to sketch. Processing made a data folder and added image to it.
Recreated sketch, saved to new folder. Used “add file” from sketch menu options. Chose image and saw that Processing made a data folder and added image to it.
I’ve specified the path, and not specified the path.
Only a lower case l in loadImage works. Not sure why theres a capital L in my code I shared.

saved and ran, same results. I agree something is off.
Will start over with yet another new / different image, and sketch.
Thanks for reviewing. Very helpful!
John

5

What editor are you using, and which platform?

6

Using Windows 10, the stock PGE editor. Java. Still wrapping my head around the P5.js

7

Issue resolved: Apparently it was windows (and my) foolishness.
I tried again tonight with new images and noticed none of my images had the file type extension showing.
I turned on “Show file name extensions”, and saw that my failing to load files had names like “moire.jpg.jpg”.
Yes, I had added the extension in myself in my hours of thrashing around. I am usually on a mac, and forgot that I did not have that display option enabled on this windows box. Thought that adding the extension would help, not knowing the extension was there, but just not being shown.
I removed the double extension and like magic, files were found, no errors.
Thanks for the advice and help.
Back to reading the manual!
Window setting: “Enable file name extensions” was part of the solution, showing I had added 2 extensions in my troubleshooting.
Johnny Why

1 Like
8

1st thing I do when I’m finished installing Windows is to check that option. :heavy_check_mark:

So many victims fell to files such as “moire.jpg.exe” when they just see “moire.jpg”. :see_no_evil:

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