Add image detection without extension?

[DeadSix27]

The program crashes when no image extension is given.
Maybe we can add code to auto-detect the image type?
Or error out if that is too much work and or is too unreliable.

Also in todo list: #1

[max20091]

We don't need a auto-detect image, just make a batch file and it will auto convert all images.

FOR /f "delims=" %%a IN ('dir /b input\*.*') DO call waifu2x-converter-cpp.exe --scale_ratio 2 --model_dir models_rgb\ -m noise_scale --noise_level 3 -i "input\%%a" -o "output\%%~na.png"

Currently supported image type is png, jpg and jpeg. I dunno if it support other image types.

1. Make a input folder and a output folder
2. Put some images to input folder
3. Run the batch file

[DeadSix27]

I mean files without an extension in the input.
It just crashes the program, definitely needs a fix, its not hard to do,ill add that later.

[YukihoAA]

@DeadSix27 I created new Pull Request #14 to fix this issue.

[DeadSix27]

@YukihoAA merged your change.