Convert 3GP to JPG/JPEG Sequence
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.
3GP to JPG/JPEG Converter Software converts 3GP to JPG/JPEG
sequence files. So, you could get every frame image of 3GP 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
The software also supports other formats and portable devices such as ALAC (Apple Lossless), WAV, Windows Phone, M4B (MPEG-4 audiobook), VOB (DVD Video), MP2, 3G2,
etc. The software could convert FLV to ASF, VOB to SWF, WMV to MKA, VOB to OGM, AVI to OGM, and so on.
3GP to JPG/JPEG Software supports batch conversion and, is compatible
with Windows 10/8/7/Vista/XP/2000.
What is 3GP?
Audio and video container format developed by the 3rd Generation Partnership
Project (3GPP). The 3GP file type is primarily associated with '3GPP'.
Tailored to the unique requirements of mobile devices, 3GPP and 3GPP2 take
advantage of MPEG-4, the standard for delivery of video and audio over
the Internet. 3GP is defined in the ETSI 3GPP technical specification.
The MP4 and the AVC file format specifications described usage of MPEG-4
content in the ISO base media file format. When transferred to a computer,
3GP movies can be viewed on Linux, Mac, and Windows platforms with MPlayer
and VLC media player. Programs such as Media Player Classic, K-Multimedia
Player, Totem, RealPlayer, QuickTime, and GOM Player can also be used.
The Macintosh type is: 3GPP. A 3GP file is always big-endian, storing and
transferring the most significant bytes first. Some cell phones use the
.mp4 extension for 3GP video. Audio imported from CD onto a PlayStation
3 when it is set to encode to the MPEG-4 AAC codec will copy onto USB devices
in the 3GP format. 3GPP is the new worldwide standards for the creation,
delivery and playback of multimedia over 3rd generation, high-speed wireless
networks. The Nintendo DSi supports .3gp on an SD card. These extensions
were registered by the registration authority for code-points in ISO base
media file format ("MP4 Family" files). 3GPP is based on the
MPEG-4 standard which was derived from Apple's QuickTime. It stores video
streams as MPEG-4 Part 2 or H.263 or MPEG-4 Part 10 (AVC/H.264), and audio
streams as AMR-NB, AMR-WB, AMR-WB+, AAC-LC or HE-AAC. It also contains
descriptions of image sizes and bitrate.
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. JPEG, which stands for Joint Photographic Experts Group (the
name of the group that created the standard), is a commonly used lossy
technique of compression for color photographic images. An image in JPEG
format has a '.jpg', '.jpeg', or '.jpe', extension. Many of the options
in the JPEG standard are not commonly used, and as mentioned above, most
image software uses the simpler JFIF format when creating a JPEG file,
which among other things specifies the encoding method. Here is a brief
description of one of the more common methods of encoding when applied
to an input that has 24 bits per pixel (eight each of red, green, and blue).
This particular option is a lossy data compression method. The encoding
description in the JPEG standard does not fix the precision needed for
the output compressed image. However, the JPEG standard (and the similar
MPEG standards) includes some precision requirements for the decoding,
including all parts of the decoding process (variable length decoding,
inverse DCT, dequantization, renormalization of outputs); the output from
the reference algorithm must not exceed: a maximum 1 bit of difference
for each pixel component; low mean square error over each 8*8-pixel block;
very low mean error over each 8*8-pixel block; very low mean square error
over the whole image; extremely low mean error over the whole image. The
human eye is good at seeing small differences in brightness over a relatively
large area, but not so good at distinguishing the exact strength of a high
frequency brightness variation. This allows one to greatly reduce the amount
of information in the high frequency components. This is done by simply
dividing each component in the frequency domain by a constant for that
component, and then rounding to the nearest integer. This rounding operation
is the only lossy operation in the whole process if the DCT computation
is performed with sufficiently high precision. As a result of this, it
is typically the case that many of the higher frequency components are
rounded to zero, and many of the rest become small positive or negative
numbers, which take many fewer bits to represent.
How to Convert 3GP to JPG/JPEG Sequence?
- Free Download 3GP to JPG/JPEG
- Install the Program by Step-by-step Instructions
- Launch 3GP to JPG/JPEG Software
- Choose 3GP Files
Click "Add Files" to choose 3GP files.
Choose one or more 3GP files you want to convert and then click Open.
3GP to JPG/JPEG Software will open 3GP 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 3GP 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 3GP to JPG/JPEG
Click "Convert" to convert 3GP to JPG/JPEG sequence.
The software is converting 3GP 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
3GP to JPG/JPEG Software is 100% clean and safe to
install. It's certified by major download sites.
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