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- Aastaajad ja Ajatsükkel
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- Adobe Animate ja Adobe After Effects
- Sotsiaalmeedia/ vale info – Animatsioon
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- Video
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- Adobe lllustrator
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- Foto: telefoni kaamera ja fotoaparaat
- Fotograaf:Sebastian Salgadu
- Photoshop
- Koomiks
- Kalender ja jõulukaart
- Faili tüüp (format)
- Arvutigraafika
- Esimene loeng
Multimedia
Multimedia is a modern technology that integrates text, sound, video, graphics, and animation in computer systems. This integration allows the input, processing, storage, transmission, and display of various data types, including text, images, and sound.
Pictures (Graph)
When discussing graphics, we find two main types: vector graphics and raster images. These can be digitized using devices like scanners and cameras. In particular, the primary file formats for images are GIF (Graphics Interchange Format) and JPG (Joint Photographic Experts Group). Notably, both formats use compression to optimize data storage.
Video and Animation
As personal computers grow more powerful, creating home video studios is now possible. However, digital video requires processing and storing large amounts of data. Fortunately, MPEG compression reduces video file sizes without noticeable quality loss.
MPEG
o understand MPEG, it is essential to know that it stands for Moving Picture Experts Group, which is co-chaired by the ISO (International Standards Organization) and IEC (International Electrotechnical Commission).
- First, MPEG-1 provides VHS-quality video, which is particularly useful where analog formats are impractical.
- Next, MPEG-2 supports television-quality images with data rates between 3 and 15 Mbit/s, thereby making it suitable for professional use.
- Additionally, MPEG-3 was designed for high-definition television at 20-40 Mbit/s, but it was ultimately absorbed into MPEG-2. It’s important to note that the MP3 format, often confused with MPEG-3, focuses solely on audio compression.
- Finally, MPEG-4 establishes standards for interactive multimedia, graphic applications, and digital television, ensuring optimal video compression.
Moreover, MPEG effectively removes redundant audio data that most listeners do not perceive, which helps achieve compression without significant quality loss. As a result, users can adjust encoding parameters to balance compression and quality.
For example, an audio WAV file encoded to MPEG-1 Layer III at 128 Kbps is 10 to 12 times smaller than the original. Furthermore, at 256 Kbps on a CD, about 6 hours of music can be recorded, and quality differences are detectable only by trained ears.
In summary, multimedia technology encompasses various data types and utilizes efficient compression techniques, making it essential for modern computing.original. Furthermore, at 256 Kbps on a CD, about 6 hours of music can be recorded, with quality differences detectable only by trained ears.nal. At 256 Kbps on a CD, about 6 hours of music can be recorded, with quality differences detectable only by trained ears.