UYVYtoRGB: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/UYVYtoRGB - from package: dirac

You may install the required package with command apt-get install {package}

Error in other languages:
UYVYtoRGB: bevel nie gevind nie
UYVYtoRGB: comandă negăsită
UYVYtoRGB: comando não encontrado
UYVYtoRGB: commande introuvable
UYVYtoRGB: command not found
UYVYtoRGB: käsku ei ole
UYVYtoRGB: không tìm thấy lệnh
UYVYtoRGB: komanda nerasta
UYVYtoRGB: Kommando nicht gefunden.
UYVYtoRGB: kommandot finns inte
UYVYtoRGB: komut yok
UYVYtoRGB: nie znaleziono polecenia
UYVYtoRGB: níor aimsíodh an t-ordú
UYVYtoRGB: no se encontró la orden
UYVYtoRGB: no s'ha trobat l'ordre
UYVYtoRGB: opdracht niet gevonden
UYVYtoRGB: parancs nem található
UYVYtoRGB: perintah tidak ditemukan
UYVYtoRGB: príkaz nenájdený
UYVYtoRGB: příkaz nenalezen
UYVYtoRGB: команда не найдена
UYVYtoRGB: командата не е открита
UYVYtoRGB: 命令找不到
UYVYtoRGB: コマンドが見つかりません