Error using Image data layer with matcaffe

[Tim]

Hi, 

I created my own net layout and started training with according to the imagenet tutorial: editing the train_imagenet.sh to my solver.prototxt 

caffe starts training without any problem. 

Now I would like to try different parameters. Therefor I would like to start the training from matcaffe, which fails with error: io.cpp:77] Could not open or find file /home/path/to/my/file.png

In matlab my code looks like this: 

% Load solver to caffe

solver = caffe.Solver(solver_file);

solver.step(iteration);

In my layout I use the image data layer pointing to a text file where all images are stored as: /home/path/to/my/file1.png 0 

image_data_param {

source: " /home/path/to/my/files.txt"

batch_size: 100

is_color: false

} 

I tried several configs for the text file, like: 

~/path/to/my/file1.png 0 

../path/to/my/file1.png 0 

../../path/to/my/file1.png 0 

../../../path/to/my/file1.png 0 

and so on but nothing works. 

Starting training from matlab with lmdb files works (used it in other project, but this time I need to load images from text file)

Again, starting training from console works with the absolute path but failing starting from matlab. Any idea? 

[Tim]

Converting from .png to .bmp seems to fix the problem. However I tried it just for one image... I gonna try it for the hole data set and report. 

Is this a bug? I guess it's because of opencv imread function not handling png files?

[Tim]

with .bmp files no problems any more

Am Dienstag, 11. August 2015 15:00:39 UTC+2 schrieb Tim: