I have a video project and i want to put a png image on top of the video for a few seconds at the beginning. The png file only contains some white writing without any background color. However, when i put it over my video there is a weird blending effect where the opacity declines circularly with very ugly contours. It is hard to describe but here is a screenshot:
The writing from the image is on the top and the blurred content is from the background video. The black area with the hard border however should not be there and i don't get where it is coming from. I created the png file with photoshop and tried different export setting such as "save for web" as PNG-24 with transparency checked and RGB Color.
I'm using Adobe CS6.
Does anyone know what i might do wrong here? Thanks.