Why Dose My Objext appears with a white background

OzRob · Post by **OzRob** » Wed May 09, 2007 4:37 am

Hi,
I have made an obect from a black & white scanned image, saved as a bitmap, I selected a persons image selecting the edges with the lasso selector, and then coppied the selection to a seperate image (object) to my library, thats fine and I m happy with the clean cut I got.

The problem is when I open a background that I want to insert the saved object too, it appears as a image with a white background, I tried everything, the properties of the object, saved as a diferent format and a few other options, but no luck.

By the way when I have the originonal scanned image up and try to use the extract object tool from the menu, it is greyed out, that why I chose the lasso selection method to extract the persons image.

Can anyone please advise what I'm doing wrong.

Regards Rob

heinz-oz · Post by **heinz-oz** » Wed May 09, 2007 5:02 am

We would need to know first what, exactly, you did

Which format did you use to save?

It's best to copy your object to the clipboard and paste it onto a new background right away. If you save your selection, any image editor will automatically save a background with the image, even if it is transparent, it's still a background. Jpeg and bmp will not save to a transparent background. Gif, png, tga etc. will but you need to select the color (background) to be transparent.

OzRob · Post by **OzRob** » Wed May 09, 2007 5:13 am

Thanks Heinz for your reply,
I did save the images as a bitmap and also a JPEG, so it would appears I need to check up on file formats and what format should be used to achieve different editoring task, Is ther any books or details that I can get that you would recomend.

Regards Rob

heinz-oz · Post by **heinz-oz** » Wed May 09, 2007 5:26 am

The format depends on where you want to use the images and the complexity of these. Gif is ok for websites but its limited color depth of 256 colors makes it less suitable for photographic images. Png may be best suited. If used in video project, tga combined with alpha chanel may be better but you can also use the ULEAD native ufo format with VS or MSP.

http://www.pircnet.com/tutsites.html may have a tutorial available.