Tips for using AstroDMx Capture

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• Svbony SV305, AstroDMx Capture, SV305-AstroDMx

By Dr Steve Wainwright

The 'classic' Mac OS is the original Macintosh operating system that was introduced in 1984 alongside the first Macintosh and remained in primary use on Macs until the introduction of Mac OS X in 2001. Apple released the original Macintosh on January 24, 1984; its early system software was partially based on the Lisa OS and the Xerox PARC Alto computer, which former Apple CEO Steve Jobs. Sebagai contoh, Awesome Live Chat Desk OS X membuatmu menyediakan pelanggan dengan dukungan live chat via notifikasi Mac sederhana. Juga, sebelum kita memulai mengutak-atik dengan itu, mungkin akan berharga untuk mengambil waktu beberapa menit untuk memberitahumu apa tepatnya Terminal itu (semuanya tentu saja dalam cara non-teknis!). Click here to go to our download page for Mac applications, where you can learn about and download everything you need to operate your Atik camera. Click here to go to our legacy software download page, where you can download previous editions of our core. Untuk mengatasi flash disk yang tidak bisa terbaca di Mac, Anda hanya butuh mngubah atau format ulang flash disk ke tipe FAT32. Anda bisa melakukannya dengan Disk Utility di Mac atau format di OS Windows. Cara membuat, hapus dan modifikasi partisi hardisk Mac dengan Disk Utility diatas dilakukan pada sistem operasi Mac OS X El Capitan. Mac OS, adalah sistem operasi untuk komputer keluaran Apple yang biasa disebut Mac atau Macintosh. Sistem operasi yang terbaru adalah Mac OS X versi 10.4 (Tiger). Dan versi 10.5 (Leopard). Contoh system operasi windows XP.

The original blog: https://x-bit-astro-imaging.blogspot.com/2020/10/tips-for-using-astrodmx-capture.html

Downloadinghttps://hereffil709.weebly.com/gojoe-mac-os.html.

Be sure to read carefully what is written on the download website, otherwise you could end up downloading the incorrect version of AstroDMx Capture. Particular care is needed at the moment because the site is being prepared for other releases.

This is particularly important for Linux downloads as there are versions for CPUs made in 2013 and younger and also for older CPUs. If you download the wrong version, it may crash on startup. The software is not designed to run on CPUs older than 2006. On any older CPU the software will possibly not work.

There are versions of AstroDMx Capture for X86-64 Linux rpm and deb as well as manual installers. As stated above, there are versions for newer and older CPUs. There are versions for the Raspberry Pi ARM 32 and 64bit. There are also versions for macOS (released), Windows (Pending release), and (FreeBSD which is still a work in progress). Take your time to navigate to the appropriate version for you.

Running the software

The first time that AstroDMx Capture runs, it sets up a default location where captured data are stored. This is a folder called AstroDMx_DATA. However in Options there is the possibility to set a different location for captured data to be stored. For example, on one of our computers the Folder AstroDMx_DATA has been created manually in a fast, high capacity SD card that is permanently in the computer for extra storage, and the storage location has been set to this folder.

Connecting a camera

At the top left of the AstroDMx Capture Window is the Capture button. Connect a camera to the appropriate USB port and click on the connect button once. A dialogue will come up that shows all of the detected cameras such as the built in webcam and also your astronomy camera. Select the astronomy camera and after a few seconds it will be connected. Then you have to select the Format.

The camera selection dialogue

Selecting the correct FormatAdvice inc mac os.

In this example, the camera is the SVBONY SV305 and the three formats offered are RGB24, RAW 8 and RAW 16. When the format is selected, this is the format that the camera will use for the capture of image data. Note that this format can be changed later, but it is best to start with the format required. It is important to understand the differences between these formats and what they should be used for.

RGB24

This is an 8 bit format and should never be used for deep sky imaging. The 24 means 8 bits per colour channel (Red, Green and Blue 3 x 8 = 24). A good reason not to choose this format, even for 8 bit, planetary or lunar imaging, is that the debayering of the colour information is done internally by the camera SDK and we have no idea which debayering algorithm is used. However, if you wish to collect monochrome data from your camera, for example lunar data, you can select RGB24 and then select Greyscale transform. This can allow faster frame rates, but more importantly, the files will only be a third of the size of an RGB file.

AstroDMx Capture is context aware, so the option to transform to greyscale will only appear if RGB24 is selected, and other, irrelevant options will not be shown.

Greyscale transform

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RAW 8

This format should never be used for deep sky imaging.

This is an 8 bit format that can either save RAW data, or AstroDMx Capture can debayer the data to RGB using the highest quality debayering algorithms and save RGB data. The default is to save RAW data. If you try to view RAW images they will appear to be monochrome with a pattern all over the image. However, software such as Autostakkert! can debayer the data for you. Consider using this format if you find that it improves your frame rates.

This is where you can control the saved and displayed formats

Debayer: Full

This gives a colour display and saves RGB image data.

This is often the debayer mode of choice

Colour Display / Raw Out

This shows a colour preview image but saves RAW image data

https://game-united-slots-vip-sjr-reviews.peatix.com. Debayer: None

This shows an undebayered image and saves RAW data

RAW 16

This is the format that should always be chosen for deep sky imaging.

It is best to save your deep sky 16 bit data by choosing Debayer: Full. This will give you the greatest choice of software to register and stack your data. Not all stacking software can debayer RAW data.

ADC bit depths

Some cameras such as the SV305, many other astronomy cameras and some DSLRs have 12 bit ADCs (Analogue to digital converters)

Other cameras such as the ZWO ASI178MC have 14 bit ADCs as do some other astronomy cameras and some DSLRs.

Cameras such as the Atik 314L mono have 16 bit ADCs as do a number of other astronomy cameras.

Most cameras with 12 bit or 14 bit ADCs can also save out 8 bit data, which is a rapid process that allows them to have high frame rates when doing solar system imaging.

What do 8 bit, 12 bit, 14 bit and 16 bit mean in terms of cameras and images produced?

8 bit image data contain 2⁸ that is 256 levels of brightness

12 bit image data contain 2¹² that is 4096 levels of brightness

14 bit image data contain 2¹⁴ that is 16384 levels of brightnessFractured mind mac os.

16 bit image data contain 2¹⁶ that is 65536 levels of brightness

Astronomical objects have continuous levels of brightness and the larger the number of bits used to capture the data, the more of the intermediate levels of brightness are actually captured and jumps in brightness within images are avoided.

Saving 16 bit image data from 12 bit and 14bit ADC cameras

There are only 8 bit, and 16 bit integer image formats used in astronomy. This means that image data can be saved in 8 bit image containers or in 16 bit image containers (files). Tiff files can be 8 bit or 16 bit. (As an aside, Deep Sky Stacker automatically saves the stacked image in a 32 bit floating point TIFF or FITs file, whatever bit depth and format you chose to save out the stacked image. This is because Deep Sky Stacker, like some other stacking software, sums the registered images into a 32 bit floating point image file). However, the typical images worked on by astronomers are 8 bit or 16 bit integer files.

8 bit data are stored in 8 bit files.

12 bit and 14 bit data are stored and saved in 16 bit files, usually TIFF or FITs files.

All processing is done on the high bit-depth images and only when processing is finished is the bit depth converted to 8 bits and saved, usually as an uncompressed PNG file that can then be used for display and sharing.

The displayed image can be controlled by the Camera’s controls, but also the Software Controls, that in 8 bits can even be applied to the saved data if required.

Software Controls

In general, software controls should only be applied to saved data if the camera itself does not have the required controls.

In 16 bits the display Preview Controls also include various transforms that enable a 16 bit image to be made visible in the display screen.

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It will be noticed that in all of the previous images, AstroDMx Capture has inherited the dark theme set in the desktop environment themes. In the image below, where a dark theme isn’t used, AstroDMx Capture does not use a dark theme.

AstroDMx Capture using the Preview controls to render the 16 bit image easily visible

I hope that these tips and information will make it easy and enjoyable to use AstroDMx Capture.

However, no software should be used for the first time when you are seriously trying to capture astronomical images. It is best to practice in daylight on landscape or cityscape objects, so that you can become familiar with the operation of the software.

The information provided here is not exhaustive, but is just intended as an introduction to the intuitive AstroDMx Capture imaging software.

Downloads

Atik Mac Os X

• 30 Day free Trial: Windows or Mac OS X
• Free Version for ZWO ASI Cameras: Windows or Mac OS X

Video Walkthrough of AstroLive USB Functionality
(Slightly out of date, from the beta test)

AstroLive USB is a Real-time Processing Game Changer

AstroLive USB brings a whole suite of new features to real-time processing which have never been available before. In addition to the new features it is written from the ground up with high megapixel USB cameras in mind so that it doesn't lose a step even when processing huge 20 Megapixel images from the latest cameras. AstroLive USB gives you the technology to create stunning real-time views that can rival long-exposure images in quality.

Partnership with ZWO for Free AstroLive USB

Exclusively for ZWO ASI cameras, you can download and use AstroLive USB free of charge forever. The ZWO version of AstroLive USB includes all the functionality of the regular, paid version, except the ability to use cameras from other brands. This exciting partnership between ZWO and AstroLive helps fund AstroLive development and supports the innovation ZWO is bringing to the EAA market in the form of new camera technologies which complement the AstroLive software innovation.

Gradient Removal

AstroLive USB can remove gradients in the image background caused by light pollution, vignetting, moonlight, sky glow, or anything else which intrudes on your views. It can even greatly reduce amp glow.

Aligned Stacking

Stack images in real time with alignment for both offset and rotation so you can even align images takes without guiding or with an alt-az mount. Alignment is done by star detection so the images will always match up.

Image Calibration

Real-time dark subtraction and flat calibration allow you to get the best possible image. You can also forego this step and use the gradient removal functionality to correct most calibration issues automatically instead.

Noise Reduction

Reduce background noise in your images with the built in and automatic real-time noise reduction feature. This is especially valuable for uncooled cameras.

Sharpening

Improve the fine detail of your views with automatic sharpening in real-time. Sharpening increases the detail visible by processing out some of the imperfections in the image which blur the view.

Levels and Curves

Adjust the histogram and see all the faint detail you can bring out of the image that you couldn't see before. Advanced users can also use the curves tool to adjust the live view just as you would in PhotoShop, but now in real time.

Telescope Control

AstroLive USB includes a full Messier, NGC, and IC catalog as well as ability to control the telescope on both Windows and Mac so you can do everything in one place. Any ASCOM-compatible telescope is supported on Windows and any INDI-compatible telescope is supported on Mac.

Plate Solving

Even if your pointing isn't very accurate on your telescope, the built in plate solving will get your target centered every time. AstroLive USB takes a picture of the field and then adjusts the telescope to ensure you never have to spend time looking for an object again.

Focuser Control

AstroLive USB can control your electronic focus motor (via ASCOM or INDI) so you don't need to use a separate program.

Auto Focus

If you have an electronic focuser with absolute control you can take advantage of the built in autofocus routine to get your focus just right, every time.

Supported Hardware

• ZWO ASI USB 3.0 Cameras on Windows and Mac OS X, AstroLive USB is free for use with these cameras!
• Atik 4-Series and Infinity on Windows and Mac OS X
• Starlight Xpress Lodestar, Ultrastar, most other recent models on Windows and Mac OS X
• Any camera with a conformant ASCOM 6 Camera driver on Windows
• Any mount with a conformant ASCOM 6 Telescope driver on Windows
• Any mount with a conformant INDI driver on Mac OS X
• Any absolute position focuser with a conformant ASCOM 6 Focuser driver on Windows
• Any absolute position focuser with a conformant INDI driver on Mac OS X

Current Limitations

Atik Mac Os Catalina

• The manual is not yet complete.
• Only absolute focusers are supported, especially for autofocus. Relative focusers may or may not work.
• Plate solving by default requires an internet connection to reach Astrometry.net. This can be configured to use a local Astrometry.net install, however this process has not been documented yet and isn't guaranteed to work.
• Some mounts may not work with plate solving on Mac OS X if their INDI driver does not support the SYNC command to synchronize the mount's position with the plate solve result.
• Binning and region of interest (for autofocus) are currently disabled on the native Atik and Starlight Xpress drivers. You will need to connect to these cameras via ASCOM on Windows in order to use that functionality presently.
• The Atik Infinity sometimes does not connect properly using the native driver on Windows. You should use the ASCOM driver with this camera on Windows. It connects properly on Mac OS X.
• On some small screens not all controls may be visible or they may overlap one another. To counteract this the panels can be resized or collapsed by dragging between panels up and down for the stacked panels or left and right to collapse or resize any of the three columns.
• Aligned stacking may not work on some cameras with short exposures if the stars are not bright enough for them to be located by the program. This generally is only an issue on cameras without adjustable gain at shorter exposure lengths.
• Reticle functionality for centering is currently missing.
• Currently there is no support for adding text overlays to the image or displaying the image in another window or on another screen.