Download Astra Image
Donnie Ehlen
The first image is processed in Registax 6, with my usual wavelet scheme, the second in Astra Image Plus 4.0. The latter with Lucy Richardson deconvolution 1.5 pixel Gaussian kernel and some 100 iterations with strength of 1.7 or so. I applied a gamma of 0.75 as well. The deconvolved image is clearly sharper, but the contrast of the finer detail is less strong (more natural, really)
I would also suggest that you knock the bottom three or four Wavelet sliders over to the far left and use only the top two small radius sliders , with a gentle touch , to bring out the finer detail , the bottom large radius controls ruin many of the images I see posted across various sites .
I wasn't being clear. I typically use a base scheme as starting point, and tweak that until it is (visually) optimal. I do notice I rarely deviate very much from the base settings I stored. That is what I meant by usual wavelet scheme. I actually find my few white-light images require more experimentation than my H-alpha.
The latter is perhaps a bit too strong. Incidentally, the image processing toolbox in MatLab does support LR deconvolution, so I might well see if I can write a script to do the deconvolution of all the panes
It has phenomenal deconvolution routines that work better than Registax wavelets on some images. it also has excellent contrast enhancement, wavelet, multiscale sharpening and denoising (ironically the standard denoise always seems to give a smoother result than the high-quality setting , which often creates jpeg-like artefacts on astro images).
I also find it useful to use it to create a tidied up and sharpened version of some deep space images. This usually looks a bit too artificial so I add it to the original as a luminance layer at a reduced percentage.
On feature of it is an excellent deblurring function. It won't make a silk purse out of a sow's ear but it can improve an out of focus image or even remove a small motion blur without degrading the image too much in other ways. I tried this for my poorly focused Andromeda image, which needed an embracingly large blur kernel - about 4.5 pixels across.
The difference between these two images is only the addition of the deblurred layer. The stars are tighter, but it won't recover the really tiny stars which are missing and the background is noisier, but the overall image is more pleasing (IMHO):
And as (despite my claim Astra gives a better representation) it's come out a lot lighter than expected (I suspect the latest W10 update has reset various things it deleted my licence key for Gradient Exterminator and lost my saved customisations for photoshop...), highlighting a fault on the flat, one with the fault fixed and a bit darker as a finished image:
Yes, I use it all the time for solar system image processing, haven't really tried it for deep space. As wornish says it works great for moon images where it can really bring out the detail without adding to the noise and doesn't give the final image that 'processed' look.
Astra definitely creates additional images with each upload. You can access your image file uploads via FTP & see a list of the additional images generated for each image uploaded to the media library. Each generated image has appended text tagged onto the end of the file name like this: 300300, 768768, 800800, etc.
The culprit is WP itself. The higher the definition of the uploaded image, the higher the number of additional images created. WP can create from 3 to 9 images. Definition may vary from 150150 to 20482048. However, no additional image can be more defined than the original (no upsizing). Some themes may create their own additional sizes. This is not the case of Astra, though.
I am using an Astra template which includes an image carousel. From a tutorial I watched i thought I could upload images into the carousel and it would automatically put them into the template box. However whether I load them from the media library or from the site they are all different sizes, some outside the box of the carousel. What can I do? I do not understand CSS
Astra Image Pro is an image processing, sharpening, enhancement and analysis software. It lets you sharpen, deblur, enhance and analyse your images easily. It includes powerful, easy-to-use tools that allow you to get impressive results quickly and conveniently.
I have used Affinity Photo for two years since leaving Photoshop and am very satisfied. Recently a professional photographer suggested that one of my images below could be improved by using a deconvolution sharpener on it. This image was taken at Chester Zoo on my X-T2 with the 100-400 lens at 600mm, full frame equivalent. I sharpened the image by modest use of the High pass Filter and am pleased with the result. However, I realise I have almost no knowledge of deconvolution sharpening which I thought naively was more about removing the blurring associated with AA filters which of course the X-T2 sensor does not have.
I do find that sharpening is a black art. What works for one image fails miserably in another. In the link I posted, the Fritillary image did not respond to the usual USM filter, but did so for wavelet sharpening. In the larger version of my avatar -my-avatar/ neither wavelets nor deconvolution worked, but USM did!
Founded in 1971 by Abel, together with his friend Con Pederson, RA&A was a pioneering company that employed the newest techniques in creating VFX, including slit-scan photography, a technique Trumbull employed on 2001: A Space Odyssey (1968), and the earliest computer generated imagery (CGI). Initially the company employed these kind of techniques for producing groundbreaking commercials, among others for the beverage 7-Up and the clothing brand Levi's, before branching out to motion picture productions. In those years the company experimented with the use of the Evans & Sutherland vector graphic computer in order to pre-visualize effects shots, called "animatics", digitally, an innovative approach at the time. Eventually, it enabled employee Bill Kovacs (the later founder of Wavefront Technologies, a company developing CGI software) to shoot imagery right off the E&S screen, which yielded unprecedented "pseudo-3D" CGI. Abel was tinkering with this technique at the time of Star Trek movie, but it proved to be too far ahead of its time for practical application in motion picture productions, contributing to the problems described above. Nevertheless, Abel succeeded in making the technique work a few years later for TRON. [9] Despite that RA&A's commercials were heralded as groundbreaking, the innovative nature of these had serious drawbacks. Abel was not yet able to fathom the financial consequences of his cutting-edge techniques, and the production ran frequently overtime and over-budget, causing friction and irritation with clients. Abel had to frequently ask his clients to cover the extra expenditure incurred, and when they balked, the company absorbed these themselves. Executive Producer Sherry McKenna exemplified, "We were holding our breath from payroll to payroll." This situation became especially grave when RA&A was producing the Levi's commercial. McKenna continued, "Levi's killed us. It was one of the most disastrous six months I ever spent. Bob [Abel] was interested in art. The fact that his company went from black to red did not interest him. What interested him was that his [Levi's] commercial rated higher than any other." This was the state of affairs, with potential customers already taking their business elsewhere, when Paramount approached the company in late October 1977, "Paramount didn't check us out...When I heard about Star Trek, I thought, this is going to be Levi's-times-four.", McKenna added prophetically. (New West magazine, 26 March 1979, pp. 59-60)
To add a featured image to a page or a post, you will need to edit it. Once you start editing, choose a featured image in the page/post settings. As an example, we will explain how to add a featured image to a new post:
It is vital to have all of your images optimized as the size of the images impacts your loading times and overall website performance. Some great tools will do this for you. You can check our blog article to compare different image optimization plugins and choose the best tool for you.
On the other hand, though these tools are a great help, only up to a certain point. To achieve the best results, the image files should be already formatted the right way before uploading them to your website.
However the builtin registration mode does not work at all. When setting the registration to true, I have shifts along the two axis with the two images as showed in the attached picture. As you can observe the depth feed is 0-padded and their FoV are not the same.
Does anyone could register the two stream to perform pixel to pixel correspondence ? In fact, without this feature the camera modules are unusable.
Yes, even is the images get a better alignment when setting this boolean to true, there is still not a perfect registration between the two streams. I tried investigating if the remaining shift was constant along the 2 axis but it appears that it is not.
I admit that I more or less gave up with this camera. It is crazy that such a crucial feature being the registration of the two streams cannot even be supported yet.
The depth resolution is 640x400 (using openni2) and the RGB resolution is 640x480 (opencv). If you delete the lower 80 rows of RGB image, making the frame 640x400, then you can solve half of the problem.
After doing so, find the contours of your object in the RGB image using OpenCV
the method that worked best for me is using canny edge detecting, converting to binary, and then using the method used in the following article to get the mask of your object Filling holes in an image using OpenCV.)
after getting the mask use the following code to get the area and center of the shape: