Image generation problem at categories import

[Quokka Web]

Hi,

 

I imported categories with images on Prestashop but I had problems with images thumbnail generation. Some images with medium_default size are generated with big whitespaces around them so the images seem to be very small.

 

medium_default has the default configuration 125x125.

We can see the problem here: http://buroshop.titchagcreation.com/286-pochette-d-expedition. On subcategory "POCHETTE A BULLE D'AIR" the image seems to be very small.

This is the original image: http://buro-shop.info/bs_img/B0012-C00023.jpg I put in my csv file.

 

It is strange because this problem did not occur with all images. For example, here: http://buroshop.titchagcreation.com/280-enveloppes-pochettes for subcategory: "ENVELOPPES & POCHETTES..." the image was well generated. This is the original image: http://buro-shop.info/bs_img/C00033-121888859.jpg.

 

I already noticed this problem before. I regenerated the images (from Preferences/Images) and all the thumb images were well resized. 
Before regenerating the thumb images I would like to know if there is a solution for my problem? Maybe the original size of images can be a problem? Someone else encountered the same problem?

 

I'm using Prestashop 1.6.1.6.