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Convert VOB to PNG Sequence
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PNG (Portable Network Graphics) is a bitmapped image
format that employs lossless data compression. PNG was created to improve upon
and replace GIF (Graphics Interchange Format) as an image-file format not requiring
a patent license. The initialism PNG can also be interpreted as a recursive initialism
for "PNG's Not GIF".
VOB to PNG Converter Software converts VOB to PNG sequence files.
The software captures every frame of VOB video clips, and then exports the
frames to a serial of separated PNG files. You can also convert VOB to other
image formats such as BMP, JPG, and TIFF.
And, you can set output frame rate, and output image size with the software. The
output PNG files look something like this.
The software is also a video and audio converter that supports common formats
and portable devices such as VCD, ALAC (Apple Lossless), WMV, AVI, AIFF, CAF (Core Audio Format), VOC, etc.
The software could convert VOB to M4R (iPhone ringtone), MOD to VCD, RM to FLAC, MPEG to MP2, MOV to Windows Phone,
and so on.
VOB to PNG Software supports batch conversion and, is compatible
with Windows 10/8/7/Vista/XP/2000.
What is VOB?
A Video Output Board (VOB) file is a subset of the standard MPEG-2 system
stream. In other words, it's one way to watch video. VOBs contain excellent
playback quality and typically take up lots of hard drive space. VOB files
may be accompanied with IFO and BUP files. These files respectively have
.ifo and .bup filename extensions. Basically VOB file is just a basic MPEG-2
system stream -- meaning that it is a file that contains multiplexed MPEG-2
video stream, audio streams (normally AC3 and DTS formats) and subtitle
streams. 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. On the DVD,
all the content for one title set is contiguous, but broken up into 1 GiB
VOB files in the computer compatible file systems for the convenience of
the various operating systems. Authentication of the disc allows the copying
of individual VOB files without error, but the encryption keys will not
be copied. If the copied undecrypted VOB files are opened in a player,
they will request the keys from the DVD-ROM drive and will fail. Images,
video and audio used in DVD menus are stored in VOB files. 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 PNG?
PNG, an acronym for Portable Network Graphics, is a lossless image file
format. It was designed as a superior replacement for the GIF format as
the LZW data compression scheme used in GIF was patented by Unisys. PNG
does not require a patent license. The most common general-purpose, lossless
compression algorithm used with TIFF is Lempel-Ziv-Welch (LZW). This compression
technique, also used in GIF, was covered by patents until 2003. There is
a TIFF variant that uses the same compression algorithm as PNG uses, but
it is not supported by many proprietary programs. TIFF also offers special-purpose
lossless compression algorithms like CCITT Group IV, which can compress
bilevel images (e.g., faxes or black-and-white text) better than PNG's
compression algorithm. Another important feature of PNG is its compression
algorithm. This non-patented lossless compression scheme uses a special
method called deflate, which predicts the color of each pixel based on
the colors of previous pixels, then filters the predicted color from the
actual color. This filtering allows for easier compression of images, thus
reducing a file size to up to 60%. Overall though PNG are widely supported,
GIF is still the most popular. Images are compressed to small file sizes
but this is a "lossless compression" meaning that all the image
data is retained when you save or view a PNG file. PNG files are supported
by modern web browsers. In the past only GIF and JPG files were supported
on the web. The only limitation of PNG as compared to GIF is that it does
not support animations. Images saved in the PNG image format potentially
have a much higher color depth than their GIF counterparts - while GIF
limits its palette to 256 colors, PNG can be true color. This allows for
a much higher fidelity of image than GIFs are capable of, allowing for
images on a par with their JPEG cousins.
How to Convert VOB to PNG Sequence?
- Free Download VOB to PNG Conversion
Software
- Install the Program by Step-by-step Instructions
- Launch VOB to PNG 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 PNG 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 PNG (image sequence)".
- [Optional, for advanced user]
Set PNG Encoding Parameters
If you want to change PNG 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 "PNG
(image sequence)" at "Output Format", and then set options
for image encoding such as image size, frame rate, crop
pictures, deinterlace pictures,
etc.
- Convert VOB to PNG
Click "Convert" to convert VOB to PNG sequence.
The software is converting VOB files to PNG.
- View and Browse PNG Files
When conversion completes, you can right-click converted item and choose "Play
Destination" to view the first outputted PNG file; or choose "Browse
Destination Folder" to open Windows Explorer to browse the outputted PNG
files.
- Done
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VOB to PNG Software is 100% clean and safe to
install. It's certified by major download sites.
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