Transparency

[maneavel]

Hi,

I'm using nconvert to convert PNG to JPG using this lign of command : xnview -npcd 2 -size 256x256+0 -ctype rgb -corder inter -out jpeg -o C:\Images450\%%.jpg -autocrop 0 255 255 255 -ratio -rtype lanczos -rflag orient -resize 450 450 -bgcolor 255 255 255 -canvas 450 450 center "C:\Users\PPMC-Julien\Desktop\base\ChouChous-Minis-carreaux-amande-164908.jpg"


When i use xNview : no problem.

But when i use nconver i got this kind of result :



Do you know what i'm doing wrong?

Thank you for you help!!

there's the original :

[xnview]

Please use -merge_alpha if you don't save alpha channel

[maneavel]

Please use -merge_alpha if you don't save alpha channel

Works perfectly, thanks Pierre.

[asabled]

Hello
I have a similar problem while trying to convert transparent png to to transparent tiff.
I would like to keep the transparency but I get strange results

Here is a screenshot
http://cjoint.com/?0Icbjes9Oqh


The command line used is
nconvert.exe -out tiff -o test.tif -overwrite -resize longest 100 test.png

Thank for your help

[xnview]

Hello
I have a similar problem while trying to convert transparent png to to transparent tiff.
I would like to keep the transparency but I get strange results

could you send me your file?