![]() ![]() One of the standout features of Sixtar Gate: STARTRAIL is its diverse soundtrack. While the adventure mode, which offers a glimpse into the story of Sixtar Gate, is currently in development, players can still enjoy the game's engaging and challenging rhythm gameplay. ![]() Together, they explore the Sixtar system and discover new worlds and challenges along the way. Players take on the role of the captain of the science vessel Ausflug, accompanied by their navigator, Shii. and published by CFK Co., Ltd., this game offers a refreshing take on the rhythm genre, with a space exploration theme and a variety of original and licensed tracks. Developed by Lyrebird Studio and Starlike Inc. Sixtar Gate: STARTRAIL is a unique rhythm game that takes players on an intergalactic adventure through the vast Sixtar system. Size: 7.8 GB About Sixtar Gate: STARTRAIL GameĮxplore the Sixtar system in this unique rhythm game featuring original and popular songs, gates that change gameplay, and a cooperative mode. This more than doubles the amount of time required to produce a star trail image, but the results are very satisfying indeed.Developer: Lyrebird Studio, Starlike Inc. To that end I have created a fork which has the ability to perform automatic sky glow removal by applying the gaussian blur technique to each individual frame. With 100’s of frames this is quite a tedious process, but since the GIMP startrails plugin is open source GPLv3+ licensed python code, we have the freedom to modify it. Ideally one would subtract the sky glow from each individual frame before merging them to produce the trail. When some images contain clouds, the final image (as seen above) will have a quite uneven, patchy sky glow which is not easily removed with a simple subtraction layer. Ideally one would simply wait for a clear day before capturing images, but not everyone has such a luxury of time. Weather often plays a part, sending clouds through the scene during capture. If the sky conditions were changing during the course of the image capture session, any single frame will not be so close to the average glow of the final image, so will either be over or under correcting the sky glow. While this is much improved, there are still some limitations with this technique. The final star trail image with the gaussian blurred sky glow subtracted ![]() All too often the sky glow is not uniform, but in fact a gradient from top to bottom of the frame, meaning the results of curve adjustment show up the gradient The problem with this is that the corrections will apply to the background sky, the stars themselves and any foreground objects uniformly. ![]() A simple way is play with the curves/levels to reduce the intensity of the background glow and/or use colour balance corrections to try and make it less noticeable. There are number of techniques for removing sky glow, with varying pluses and minuses. When taking images in London though, there is a major problem with sky glow from the ever present light pollution. The startrail application will merge all the dark frames and then subtract the result from the light frames, removing the hot pixels from the final image. These frames will record any hot pixels or general sensor noise that may be present. The first thing people do is to add in dark frames, which are images captured with the lens cap on. This is all very straighforward if you’re capturing images under ideal conditions, but life doesn’t always work out that way. The basic star trail image with no sky glow adjustments applied ![]()
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