Ģ First adjust red, green, and blue together by changing the value, and then adjust, , and values individually.ģ Repeat this adjustment on all projectors
You can make this overlapping area appear less distracting by performing.
Matching Colors in the Overlapping Area In overlapping projection, portions of images in the overlapping area that pick up other colors or are miscolored may be more noticeable. Adjust the settings to make the blending area for each image the same.Īdjust the overlapping area to create a smoother transition between projected images. After you complete settings for one image, do the same thing for the other one to specify the blending area. Shading is applied to this area, and the brightness is adjusted to match portions that overlap with other areas. The area between the starting and ending markers is called the blending area. Initially, only the red marker is visible when you prepare for edge blending, because it is projected over the green marker.ģ In, select and use the buttons to move the start marker to the outer edge of the overlapping area.ĭo this for each edge on the top, bottom, left, and right.Ĥ Select and use the buttons to move the end marker to the inner edge of the overlapping area. The red marker indicates the start position for adjustment, and the green marker, the end position. Marker lines are projected on the images. Thus, even with the same model, differences in color may be noticeable. Keep in mind when projecting from multiple projectors that each unit may have a different color balance. This feature is called edge blending.įollow these steps for basic edge blending with two projectors side by side. In order to blend it together, you need to reduce the brightness in addition to matching the image.Overlapping edges of images from multiple projectors used together can be blended to make the overall image more seamless. If you have two images side by side and the middle 20% is doubled, obviously that portion is going to be brighter than the rest of your image. The second part of the process involves feathering the images to eliminate the “hot spot” that is guaranteed to occur. This overlapping gives you a larger area to match up which eliminates the hard edge you’d see if you simply placed the two images side by side. Essentially you send the same portion of your image across two projectors. The first is basically just overlapping two images. So, how does edge blending really work? There’s basically two processes. Essentially, this is what edge blending will accomplish. Much like when you paint a wall, you always overlap your strokes to get as even a coverage as possible. When you place two projectors side by side, the human eye will notice the edge, the mismatched colors, and the split or overlap of the images. Simply put, when you have two projectors lined up next to each other creating one solid image, you will never be able to create a seamless edge without edge blending. We have used all three with varying results. There are numerous ways to handle edge blending including software, hardware, and physical applications. We’ve touched on the concept of edge blending before, but have never dived too deeply into the subject matter.Īt it’s basic form, edge blending occurs when you combine (overlap) the edges of two projectors in a multiscreen setup.