I'm looking for a way in c# to convert base64 png to base64 jpg.
I'm extracting the data from the data-base and my api needs to return the base64 in jpg format
without
saving the file during the conversion.
Thanks.
What I have tried:
I've trued to return the thumbnail of the original image but the image is not returning good when saving it (for testing).
Quote:
Convert base64 png image to base64 jpg image without saving
Procedure:
- Get base64 stream
- Convert back to normal png format
- Convert to jpg
- Convert to base64
Quote:
I've trued to return the thumbnail of the original image but the image is not returning good when saving it (for testing).
And we are supposed to know what is wrong ?
Byte[] pngBytes = Convert.FromBase64String(base64);
using
(MemoryStream msPng =
new
MemoryStream(pngBytes))
using
(Image img = Image.FromStream(msPng))
using
(MemoryStream msJpeg =
new
MemoryStream())
img.Save(msJpeg, ImageFormat.Jpeg);
jpgArray = msJpeg.ToArray();
return
(jpgArray);
Read the Base64 data into an Image class instance viaq a stream
Save the Image as a JPG into a Stream, and convert that to Base64.
private
string
FromBase64PNGToBase64JPG(
string
base64PNG)
byte[] bytes = Convert.FromBase64String(base64PNG);
using
(MemoryStream msIn =
new
MemoryStream(bytes))
using
(Image pic = Image.FromStream(msIn))
using
(MemoryStream msOut =
new
MemoryStream())
pic.Save(msOut, System.Drawing.Imaging.ImageFormat.Jpeg);
return
Convert.ToBase64String(msOut.ToArray());
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