Image problem using ftp upload binding

Hi all,

I’m trying to get a snapshot from my dvr using ftp upload binding. Everything seems to work, but all I can see is this unusable image.

Here is my setup

Image camera_image { channel=“ftpupload:imagereceiver:camera:image” }

Frame label=“ALARM STATUS” {
Text item=InfoAlarm
Text label=“Imagi” icon=“camera” { Image item=camera_image }

I’m running a RPi3 with openhab 2.4 on it. I’ve also tryed with a windows 7 computer, but all I can see is an empty frame, with no image at all.

I hope someone might help.

Kind regards