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Convert VOB to JPG/JPEG Sequence
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JPG/JPEG is a commonly used method of lossy compression
for digital photography (image). The degree of compression can be adjusted, allowing
a selectable tradeoff between storage size and image quality. JPEG typically achieves
10:1 compression with little perceptible loss in image quality.
VOB to JPG/JPEG Converter Software converts VOB to JPG/JPEG
sequence files. So, you could get every frame image of VOB in
JPG/JPEG format. You can also set output frame rate and JPG/JPEG resolution in
the software. The output JPG/JPEG files look something like the following screen
shot.
The software also supports other formats and portable devices such as M4V, OGM, TIFF image sequence, PPM image sequence, Windows Phone, WMV, ASF,
etc. The software could convert RM to FLAC, M2TS to 3G2, M2TS to MP3, AVI to M4V, FLV to 3G2, and so on.
VOB to JPG/JPEG Software supports batch conversion and, is compatible
with Windows 10/8/7/Vista/XP/2000.
What is VOB?
VOB files are the DVD movie files that make up a DVD structure. A VOB file
contains all information that a DVD needs to play video, sound, menus and
subtitles. VOB video is encoded in MPEG-2. Almost all commercially produced
DVD-Video titles use some restriction or copy protection method, which
also affects VOB files. Copy protection is usually used for copyrighted
content. Images, video and audio used in DVD menus are stored in VOB files.
Windows Media Player, VLC and Media Player Classic are all free applications
that support playback for these files. These apps make it possible to view
a disc's contents without loading it into a DVD player, and resemble each
other closely in terms of media management. A player of generic MPEG-2
files can usually play unencrypted VOB files, which contain MPEG-1 Audio
Layer II audio. Other audio compression formats such as AC-3 or DTS are
less widely supported. VOB files may be accompanied with IFO and BUP files.
These files respectively have .ifo and .bup filename extensions. Files
in VOB format have .vob filename extension and are typically stored in
the VIDEO_TS folder at the root of a DVD. If someone is trying to copy
the contents of an encrypted DVD-Video (e.g., VOB files) to a hard drive,
an error can occur, because the DVD was not authenticated in the drive
by CSS decryption software. Many DVD-Video titles are encrypted with Content
Scramble System (CSS). This is a data encryption and communications authentication
method designed to prevent copying video and audio data directly from the
DVD-Video discs. Decryption and authentication keys needed for playing
back encrypted VOB files are stored in the normally inaccessible lead-in
area of the DVD and are used only by CSS decryption software (e.g., in
a DVD player or software player).
What is JPG?
Short for Joint Photographic Experts Group, and pronounced jay-peg. JPEG
is a lossy compression technique for color images. Although it can reduce
files sizes to about 5% of their normal size, some detail is lost in the
compression. While JPEG images can contain colorful, high-resolution image
data, it is a lossy format, which means some quality is lost when the image
is compressed. If the image is compressed too much, the graphics become
noticeably "blocky" and some of the detail is lost. Like GIFs,
JPEGs are crossplatform, meaning the same file will look the same on both
a Mac and PC. Regular JPEG is "lossy", meaning that the image
you get out of decompression isn't quite identical to what you originally
put in. The algorithm achieves much of its compression by exploiting known
limitations of the human eye, notably the fact that small color details
aren't perceived as well as small details of light-and-dark. Thus, JPEG
is intended for compressing images that will be looked at by humans. If
you plan to machine-analyze your images, the small errors introduced by
JPEG may be a problem for you, even if they are invisible to the eye. The
JPEG standard includes a separate lossless mode, but it is rarely used
and does not give nearly as much compression as the lossy mode. JPEG stores
full color information: 24 bits/pixel (16 million colors). GIF, the other
image format widely used on the net, can only store 8 bits/pixel (256 or
fewer colors). GIF is reasonably well matched to inexpensive computer displays
--- most run-of-the-mill PCs can't display more than 256 distinct colors
at once. But full-color hardware is getting cheaper all the time, and JPEG
photos look *much* better than GIFs on such hardware. Within a couple of
years, GIF will probably seem as obsolete as black-and-white MacPaint format
does today. Furthermore, JPEG is far more useful than GIF for exchanging
images among people with widely varying display hardware, because it avoids
prejudging how many colors to use. Hence JPEG is considerably more appropriate
than GIF for use as a Usenet and World Wide Web standard photo format.
How to Convert VOB to JPG/JPEG Sequence?
- Free Download VOB to JPG/JPEG
Converter Software
- Install the Program by Step-by-step Instructions
- Launch VOB to JPG/JPEG Software
- Choose VOB Files
Click "Add Files" to choose VOB files.
Choose one or more VOB files you want to convert and then click Open.
VOB to JPG/JPEG Software will open VOB files and get file information
of the file such as width, height, frame rate, video bit rate, audio sample rate,
audio bit rate, audio channels, and then display the information of VOB file
at conversion list.
- Choose Output Format
Click on combo-box of output format and then choose "to JPG (image sequence)".
- [Optional, for advanced user]
Set JPG Encoding Parameters
If you want to change JPG encoding parameters such as frame rate, video size,
aspect ratio, and so on, please click "Options".
And then, switch to tab "Video & Audio" and choose "JPG
(image sequence)" at "Output Format", and then set options
for image encoding.
- Convert VOB to JPG/JPEG
Click "Convert" to convert VOB to JPG/JPEG sequence.
The software is converting VOB files to JPG/JPEG.
- View and Browse JPG/JPEG Files
When conversion completes, you can right-click converted item and choose "Play
Destination" to view the first outputted JPG file; or choose "Browse
Destination Folder" to open Windows Explorer to browse the outputted JPG
files.
- Done
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VOB to JPG/JPEG Software is 100% clean and safe to
install. It's certified by major download sites.
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