You'd be better using something like Gimp for this, if you're dealing with pixels. Inkscape is a vector program and not a good choice for this type of procedure.
If, on the other hand, you've used Trace Bitmap to create vector objects, you can select a single white-coloured object then go to Edit > Select Same > Fill Colour. This will select everything with a white fill, and you can then change the colour of all objects at once.
Your case sound s like you´re trying to get rid of a white background in an image. If that´s the case Filter->Fill and Transparency->Light Eraser can help you with that.
Beginners' Questions Replacing Pixel color
Inkscape.org
Is it possible to ask Inkscape to find all white values #FFFFF and replace with another color? I am using artwork I scanned in. Thank you!
You'd be better using something like Gimp for this, if you're dealing with pixels. Inkscape is a vector program and not a good choice for this type of procedure.
If, on the other hand, you've used Trace Bitmap to create vector objects, you can select a single white-coloured object then go to Edit > Select Same > Fill Colour. This will select everything with a white fill, and you can then change the colour of all objects at once.
Thank you so much for the information!
Your case sound s like you´re trying to get rid of a white background in an image. If that´s the case Filter->Fill and Transparency->Light Eraser can help you with that.