Converting PNG with white background to JPG: results in a black background

[briankitt]

Trying to convert a PNG with a white canvas to JPG. It results in a black background.

I am on 7.17.0.1

Here is my code:
using (MagickImage reformat = new MagickImage(inputImage))
{
reformat.Format = MagickFormat.Jpeg;
reformat.BackgroundColor = MagickColors.White;
reformat.Settings.FillColor = MagickColors.White;
reformat.Settings.BackgroundColor = MagickColors.White;
reformat.FloodFill(MagickColors.White, 0, 0);
reformat.Write(ExportImage);
}
Below is my image.

[dlemstra]

Your image has a transparent background. If you want to have a white background when you save the file as a jpeg you can color the alpha channel with the following code:

using (MagickImage reformat = new MagickImage(inputImage))
{
    reformat.ColorAlpha(MagickColors.White);
    reformat.Write(ExportImage);
}

[briankitt]

Oh, that fixed it! Thanks

…

On Mon, Aug 3, 2020 at 2:55 PM Dirk Lemstra ***@***.***> wrote: Your image has a transparent background. If you want to have a white background when you save the file as a jpeg you can color the alpha channel with the following code: using (MagickImage reformat = new MagickImage(inputImage)) { reformat.ColorAlpha(MagickColors.White); reformat.Write(ExportImage); } — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#710 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAXDH6AHWZ5FYPBKUPGLZDDR64I37ANCNFSM4PTNPI4Q> .