Image file extension for scenes[6-8] are png (instead of jpg?)

[abenbihi]

Hello,

Thank you very much for releasing the dataset with images and poses. This is very useful to evaluate feature matching.

It seems that for the folders scene[6-8], the image extension switched to '.png' as opposed to '.jpg' for scene[1-7]. On Linux, it prevents the display of images using the 'Image Viewer' when scrolling over the images. An easy fix is to simply rename the images with a 'jpg' extension.

Best, Assia