Registax v4.0 can be downloaded for free and can be found on my Free software links page. There are other Registax tutorials on the internet if you'd like a more in depth explanation but I'll show you a step by step guide of what I do. What I'm going to do here is show you how I used Registax to align, stack and process a webcam avi video of the moon I took.

Registax v5.0 is now available to download but it was completely different and looked more complicated, and as Registax V4.0 is so simple and effective I've decided to stick with it.

Below is the start screen as you'll see it once you've started the program.



Click the select button which will bring up another window. Find the video file you want to use and open it. The first video frame of your chosen file will now be shown on Registax as pictured below. You will see a box called Method and another called Alignmentboxsize. I leave Method set to Default(single) and Alignmentboxsize at 128.



Run the mouse cursor over the image and you'll see a square box as shown below. Try to find an area on the image that has a reasonable amount of detail as it will help Registax to align the frames.



Get the box in position, left click your mouse and you'll be shown the screen below.



Then click the Align button and Registax will align all the frames. A graph will appear similar to the one shown below.



You will see lots of green lines on the graph. Registax arranges the individual video frames and puts the highest quality frame on the left hand side of the graph. The lowest quality frame sits on the far right of the graph. The further right you go along the graph the lower the image quality. All the images seem ok for this video, the difference between the lowest and highest quality frames is marginal. Still, I've moved the limit point a little to show you what to do. When you move the limit point and hit the Limit button, Registax will disregard all the frames to the right of the green limit bar on the graph. To move the limit point green bar, move the grey slider at the bottom of the screen left or right. As you can see from the image below I've moved the slider slightly left of its original position and the green bar on the graph has moved accordingly. Once you're happy with the position of the slider so you've only kept the frames you want Registax to use, hit the Limit button.



You will now be shown the screen below and the graph will only contain the frames you've selected. Just click the Optimize & Stack button and let Registax do the rest.



Once Registax has finished stacking your frames you'll be given a screen similar to the one below with your stacked image.



All I do now is move the six sliders on the left varying amounts until I'm happy with the result. The top slider appears to alter the image the most and the ones below it slightly less, so with the bottom slider having the least effect. As you move a slider the image will alter in front of you. If you find it difficult to be accurate moving the slider with your mouse, once you've selected a particular slider by left clicking your mouse on it you can use your keyboard's left and right arrow keys to move it, then click your keyboard's Tab button to move down to the next slider.



For my Moon image I only moved each slider a small amount as you can see from the picture above. Experiment with the sliders and see what works for you. Once you're happy, click on the Do All button and then you'll be able to save the image. Also, once you've saved an image you can move the sliders around again, save that image and so on.

Anyway, look at the difference in the two images above. You'll notice that the craters stand out more after the wavelet sliders have been moved and the image has better definition. I'm sure there's far more you can do with Registax but I like keeping things simple. If you know any tips that might help then let me know via the Contact form link and I'll add it to this page.