Lab report Example | Topics and Well Written Essays - 2000 words - 1

Lab Report Example The second set of images showed the same trend as the first. An original image with noise added can be smoothed through the moving average filter and the noise reduced. As in the first set of images, the greater the span, the smoother the image, but there is also a greater of loss of detail. With this increased span, the (20 span) image (figure 1.1) was almost indistinguishable from the original image. When EDGE_TRUNCATE is applied to a noisy image using the moving average filter, the noise in the image decreases. However, as the span is increased, the image becomes smoother and loses definition. Without EDGE_TRUNCATE, a narrow band of noise remains around the image, this band increases as the span increases. The middle of this image has less definition than the image with EDGE_TRUNCATE. An original image had noise applied to it. The noisy image was then manipulated by applying the moving average filter with 5 span and median filter with med width 5 with shot strength 3000 to the image. The image that resulted had the noise reduced, but the image was blurry, it was smoother than the noisy image and had lost a great deal of detail. When the noisy image had the median filter applied to it, there was a narrow band around the image edge that retained the noise, but the objects in the image had no noise. The image that resulted using the median filter (figure 2.1) was smoother, with indistinguishable noise, and there was a sharper edge on the objects in the image than the moving average filter image. A shot strength of 3000 was used on an image, noise was added. The image was examined using the average filter with a span of 5. This image showed a minor reduction in noise and smoother objects. The median filter image was then compared to the moving average filter image. The objects in this image were sharper and more distinguishable (figure 2.2A), the noise in the image