Sunday, June 2, 2013

Video Stabilization

Do people often comment that your videos make them sick to the stomach?  Well then, the problem might not be just the content of your videos (although it might).  When taking hand-held video, it's extremely important to try to keep the camera as steady as possible to prevent overly shaky videos that may make the average person seasick.  

Do your videos do this (click here) to people?


One way to help mitigate such shaking is to use a stabilizing rig (a.k.a "Steadicam").  There are many options for such a rig.   Some include gyros, and/or counterbalancing weights. Although effective, such rigs can be quite costly for the average person to afford.   A much simpler (cheaper) method is to use what's called a two-handed stabilizing rig.  It's simply a camera mount that allows two handed steadying of the camera.  Also the rig is designed to increase the distance from the hands to the camera to mitigate the effects of hand shake.     

Director Sam Raimi used such a rig filming his 1981 movie "Evil Dead".  His rig was simply a two-by-four board with a 16mm camera strapped to the middle.  It required two people to hold the rig, one on each end of the board.  They would then run to the film's characters, keeping the rig/camera close to the ground.  The effect of such technique can be seen in this clip from the movie (especially watch toward the end of the clip).  There's still some camera shake, but the end result is pretty effective.  

Filmed with a 2" x 4" (no-kidding!)


You can build an easy to use single-person rig by using your own imagination.  Keep in mind that your rig should include two-handed grip, and some distance between the camera and your hands.  Here's an example, built from PVC pipe and fittings.  It costs less than $5 materials, and is extremely easy to build.  I've built one of these for myself, and really like it.  No PVC gluing is required as the pieces/fittings hold together well by friction alone.  As such, you can easily disassemble it and take it with you on travel.  

Build your own Stabilizing Rig for $5


Most camera's today also include built-in image stabilization.   These stabilizers are most effective for still photography.  Video hand shake normally exceeds the capability of these stabilizers for video.   But when used in combination with a stabilizing rig (such as the above), video shake can be greatly reduced.

Don't expect miracles with a stabilizing rig.  You'll still need to concentrate on steadying the camera as much as possible through your hand movement, and also through your feet movement.  Try holding your arms with a 90 degree bend at the elbow.  Also imagine that you're balancing books on your head when walking with the camera.

If all of the above fails, and you still end up with shaky video, your next option is to consider software stabilization.  Most low-end or free video editors (including the ones listed on this site) do not have such capability.  Additionally, software stabilization can be extremely tasking on your computer's abilities, taking hours to achieve for slower computers with limited RAM.  

Surprisingly, YouTube includes a free video stabilizing capability for your uploaded videos.  But it must be manually selected.  Instead of using your computer, you can use the YouTube server computer to conduct stabilization of your videos.  It will still take time to complete the stabilization.  But you can conduct simultaneous stabilization of multiple videos.  If desired, you could also use a video downloader (such as Freemake listed on this site) to download your final stabilized video back to your computer.

How-to-Do Video Stabilization with YouTube

Step 1: Upload your video to YouTube (I'll assume most of you know how to do that).

Step 2: Click on your YouTube name in the upper-right corner of the screen, and select "Video Manager".

Step 3: Find your video in the list, and click on the "Edit" arrow or button.

Step 4: Select "Enhancements" 

Step 5: In the upper-right corner of the editing window, select "Stabilize".  Please note that

Step 6: Final important step.  Click on "Save" directly above "Stabilize".

Please note that your YouTube video will not be stabilized immediately.  As mentioned, stabilization is an intensive process, even for the YouTube servers.  YouTube will include a banner with your video stating that it's being editing.  In the meantime, the original video will be shown until the process is completed.  Come back later (give it a half-hour at least) to see your stabilized video.  If you don't like the final result, you can always select "Revert back to original video".

Here's an example of shaky video (watch fulls screen):

And here's that same video after YouTube stabilization. Impressive, huh?


Tuesday, March 26, 2013

Overview of Free Graphic Design Programs Available

Video Editor Download Links


Avidemux

avidemiux
Avidemux is a free video editor for Windows, Mac, and Linux. It is also open source.
Get Download, View Tutorials

Lightworks

lightworks
Lightworks is a free video editor available for Windows only. It is open source/freeware? but requires you to register at lwks.com (also free) before you can use it.
Get Download, View Tutorials

kdenlive

kdenlive
kdenlive is a free video editor for Mac and Linux. It is open source.
Get Download, View Tutorials

Cinelerra

cinelerra
Cinelerra is a free video editor and effects engine for Mac and Linux. It is open source.
Get Download, View Tutorials)

Openshot

openshot
Openshot is a free video editor. It is open source, and currently available for Linux only.
Get Download, View Tutorials

Wednesday, March 6, 2013

Look What I Did !


Would like to start a series of article posts showcasing your videos that you the readers have created.  If you have uploaded a video to YouTube that you're particularly proud of, and that you would like others here to see, then please leave a comment below.  

Please include in your comment a YouTube link to your video. Please also provide some amplifying info on your video such as software used (must be freeware), editing techniqe used, blog tutorial that helped (if applicable), effects or music credits (also if applicable), and any other additional info that you might want to include in your listing.   

Please remember to keep your submissions tasteful.  When time permits I'll include your video within an article.  I'll start with the following:


What You Can Do... by: t00nz843z  
Software: VSDC Free Video Editor  
Effects Credits: Various,   Sound Credits: "Art Now" by Alex 
Technique: Chroma Keying   Tutorials Used:  12


Meadow Donuts by: t00nz843z  
Effects Credits: ProGreenScreen,   Sound Credits: Wayne R 
Technique: Chroma Keying   Tutorials Used:  1, 2




Saturday, February 9, 2013

Best Avi For Adobe Premier&Other (Media Fire Link)

Best Avi For Adobe Premier&Other
Best Avi copy


DOWNLOAD LINK


1 : http://www.mediafire.com/?xo62d8y267nqyeq

2 : http://www.mediafire.com/?hn97043922suaip

Saturday, February 2, 2013

Video Special Effects - Part 3: Chroma Key and Movement Effects


Continued from Part 2.



The following video tutorial demonstrates how chroma-key and movement effects were incorporated into the above special effects video using VSDC Free Video Editor.  This includes the application of movement, zoom, and transparency effects to simulate a UFO approaching at great speed from a great distance.  Everything demonstrated in this video is summarized in the below article.  Each paragraph includes hyperlinks to specific sections within the video to help the reader follow these instructions with video examples.


Note that VSDC downloader will suggest installing additional bundled software along with VSDC.  This is why VSDC is free. Carefully read those installation screens and make sure to uncheck or decline any software that doesn't interest you (probably all). 
(VSDC download link click here).  





The UFO green screen effect is first placed on the screen by opening its video clip file from within the program.  It is placed on the work mat by holding down the left mouse button, and moving the mouse to roughly size the effect on the mat.


Now we apply chroma keying to remove the green color background from the UFO effect clip. Click on the Video tab. In the menus, select Editor / Video Effects / Transparent Background Remover.  If your background color is green, most of the color should disappear with this selection leaving a small residual ring around the perimeter of the UFO.  Keep in mind any background color can be made invisible (not just green).  If your background is different than green (say Blue), open the properties window, and click on "Get color from scene".  Use the eyedropper sampler tool to click on and set the invisible background color.

Removing residual color. If there is a residual ring of color around the UFO, in the properties window adjust Brightness Threshold, ChromacityU, and ChromacityV until it disappears.  This will require a little finesse and practice to best balance these three setting until the desired effect is achieved.  

With the background now invisible, we can now fine-tune the placement of our effect on the screen.  Click on the Scene tab, then click on and hold the mouse button down on the UFO effect.  Adjust its placement by moving the mouse.

A movement effect can now be added. Click on the Video tab above the timeline, then move the cursor to the beginning of the Video timeline.  In the menu, select Add Object / Movement.  Move the mouse cursor to where you'd like the movement to start, then hold down the left mouse button, and move the cursor to where you'd like the movement to end.  The speed of the movement can be adjusted by adjusting the length of the movement bar.  A longer bar = slower, shorter = faster.


We can use the Zoom effect to enhance the simulation of an approaching UFO.  We'd like our UFO to be small at the start, and as it gets closer, we'd like it to get bigger.  Click on the Video tab, and move the timeline cursor to the beginning of the Video timeline.  In the menu, select Video Effects / Transform / Zoom.  Adjust the Zoom timeline bar to the same length as the Movement bar.  Click on the Zoom bar, and then open the Properties window.  Set X, Y Start values for Zoom to 0, and X, Y End values for Zoom to 100.  This will make the UFO very tiny at the start of movement, and it will grow to full size at the end of movement.


We can also apply a little transparency effect to further enhance the effect of the UFO approaching from very far away. Click on the Video tab above the timeline, and move the cursor to the beginning of the timeline.  In the menu, select Video Effects / Transparent / Custom. Adjust the Transparency timeline bar to the same length as the Movement bar.  Click on the Transparency bar, and then open the properties window. Adjust Transparency Start to some mid value (such as 42) and End value to 100.  This will make the UFO semi-transparent at the start, making it somewhat hard to see at the beginning of its run.  But as it gets close, it will become more solid and more well defined.




To be continued in Part 4.