Update: We have released XSplit VCam sometime last year which makes background removal and replacement easier than ever. All the tips and information in the guide below are still correct however we highly highly recommend you to check out XSplit VCam at xsplit.com/vcam.
Chroma keying is a technique commonly used in video production that involves compositing two images or video streams together based on color hues. In other words, it is used to place an object in the foreground into a new background.
One of the hidden features of XSplit Broadcaster is its ability to apply chroma key to a variety of sources. One example is to use chroma key on specially designed videos to turn them into a video overlay. Currently, a variety of Twitch broadcasters are using notifications that pop up whenever someone follows, donates, or subscribes to their channel.
After this is complete, enable chroma key by right clicking on screen region in the source list, click on the color tab, and activate chroma key. The good part about using chroma key with other sources like Twitch alerts is that they are usually designed to work easily with chroma key.
MINNEAPOLIS, MN - April 16, 2018 - Longtime radio sports director and broadcaster Kevin Houdek will receive the Sid Hartman Media Award from the Minnesota Chapter of the National Football Foundation. He was recognized at the 11th Annual Minnesota Football Honors on April 29 at U.S. Bank Stadium.
Broadcast encryption is the cryptographic problem of delivering encrypted content (e.g. TV programs or data on DVDs) over a broadcast channel in such a way that only qualified users (e.g. subscribers who have paid their fees or DVD players conforming to a specification) can decrypt the content.[1][2][3] The challenge arises from the requirement that the set of qualified users can change in each broadcast emission, and therefore revocation of individual users or user groups should be possible using broadcast transmissions, only, and without affecting any remaining users. As efficient revocation is the primary objective of broadcast encryption, solutions are also referred to as revocation schemes.[4][5][6]
Rather than directly encrypting the content for qualified users, broadcast encryption schemes distribute keying information that allows qualified users to reconstruct the content encryption key whereas revoked users find insufficient information to recover the key.[1] The typical setting considered is that of a unidirectional broadcaster and stateless users (i.e., users do not keep bookmarking of previous messages by the broadcaster), which is especially challenging.[4] In contrast, the scenario where users are supported with a bi-directional communication link with the broadcaster and thus can more easily maintain their state, and where users are not only dynamically revoked but also added (joined), is often referred to as multicast encryption.[7]
The problem of practical broadcast encryption has first been formally studied by Amos Fiat and Moni Naor in 1994.[1] Since then, several solutions have been described in the literature, including combinatorial constructions, one-time revocation schemes based on secret sharing techniques, and tree-based constructions.[2] In general, they offer various trade-offs between the increase in the size of the broadcast, the number of keys that each user needs to store, and the feasibility of an unqualified user or a collusion of unqualified users being able to decrypt the content. Luby and Staddon have used a combinatorial approach to study the trade-offs for some general classes of broadcast encryption algorithms.[3] A particularly efficient tree-based construction is the "subset difference" scheme, which is derived from a class of so-called subset cover schemes.[4] The subset difference scheme is notably implemented in the AACS for HD DVD and Blu-ray Disc encryption. A rather simple broadcast encryption scheme is used for the CSS for DVD encryption.
The problem of rogue users sharing their decryption keys or the decrypted content with unqualified users is mathematically insoluble. Traitor tracing algorithms aim to minimize the damage by retroactively identifying the user or users who leaked their keys, so that punitive measures, legal or otherwise, may be undertaken.[8][4] In practice, pay TV systems often employ set-top boxes with tamper-resistant smart cards that impose physical restraints on a user learning their own decryption keys. Some broadcast encryption schemes, such as AACS, also provide tracing capabilities.[9]
Even though Indiana's radio and television stations have been broadcasting most hours of the day for more than a hundred years, the majority of those programs were never recorded. During most of those years, stations could not afford the cost of recording, saving, and storing all of their broadcasts. Even if a station kept a library of important broadcasts or news stories, those often became the victim of a scarcity of space in the broadcast buildings and were trashed, often when the recording format changed, such as the transition from film to videotape in television in the 1970s and 1980s.
Traditional libraries and archives were slow to recognize the importance of these broadcasts, in favor of the familiar printed documents, such as newspapers and magazines. Even if some of the programming has been saved, the archives may not have the resources or equipment to play or transfer those broadcasts, so those reels or tapes may be forgotten on a shelf.
Even though much has been lost, many archives, libraries and other organizations have been putting more attention on audio and moving picture archives, especially in the past few decades. Please see our Other Archives page for more information on those collections.
One bright spot in the effort to save Indiana broadcast history is with the broadcasters themselves. Many radio and television people collected their best work and other broadcasts during their career. Those tapes, film reels, and other formats are sitting in boxes in basements around the country. Our primary effort is finding those personal archives and saving them from the dumpster. We also make it a priority to digitize the audio and moving image formats as soon as we can, to make them available to the public.
Currently, the Indiana Broadcast History Archive has eight collections and is in the process of acquiring four more. We have already digitized more than 1500 moving picture and audio files. We are adding new items to our digital collection weekly. Below is a list of our archive collections with more information on each one.
Howard Caldwell's love for reading, writing and speaking started young and continued to grow as he did. Caldwell's first taste of broadcasting came when he was just six years old and would inspire him to graduate with a degree in journalism from Butler University. After spending a year at The Exponent in Hagerstown, Indiana, then another year in the Navy editing a weekly newsletter, Caldwell broke into broadcasting first at WTHI in Terre Haute, Indiana, then at WFBM (now WRTV) in Indianapolis. In the 35 years Caldwell was in Indianapolis, he covered stories locally, nationally and internationally, going as far as India. His daughter, Ginny Hingst, was able to provide the Media School with dozens of clips showcasing Caldwell's family and broadcasting life.
The Mike Conway Collection includes audio and video materials from his career as a broadcaster. Collections include his newscasts at WTHI, WGTU/WGTQ & WPBN/WTOM-TV in Traverse City, MI, and KAKE-TV in Wichita, KS.
The Indiana Broadcast Pioneers organization has a primary mission of recognizing outstanding career achievement by individuals, especially those demonstrating a lifetime of distinctive service in the public interest.
The Indiana Broadcast Pioneers Collection includes videos produced and featured each year as new members are inducted into the Richard M. Fairbanks Indiana Broadcast Pioneers Hall of Fame. The Hall of Fame also has a display at the Indiana State Museum.
IU Newsnet is the signature curriculum-based news broadcast of The Media School. Students in the advanced television news classes produce, write, report, shoot, voice, edit and anchor the stories that comprise our newscast.
Former lawmaker Mansour Haghighatpour told Etemad Onlinethat the "audacious Paydari Party" has a lot of money, controls several powerful institutions and has seized and occupied the state television silently.
He added that Iran's ultraconservatives see themselves as the only revolutionary force in the country and call others spies and seditionists. He further said that the Paydari Party has access to money and media and has spent a lot of money on garnering support on social media.
The moderate conservative politician added that when President Ebrahim Raisi took office in 2021, he did not have his own team to form the cabinet. Paydari promised to provide the team from its ranks. However, introduced to Raisi were a bunch of ineffective and unqualified individuals. He said the former Planning and Budget chief and the ministers who have been since removed from their posts show how inefficient Paydari's men are.
Haghioghatpoor predicted that the inefficiency of the Raisi administration and the parliament, both of which are dominated by Paydari, are likely to lead to lacklustre parliamentary elections with a low turnout in March 2024, if the same individuals are the only ones who are allowed to run.
At the same time, some in Iran say that hardliners campaignedincessantly in recent months to have Ali Shamkhani removedas secretary of the national security council. He was replaced by a Revolutionary Guard officer seen as ideologically in sync with Paydari.
Paydari's grip on the state television has also been strengthened during the past years after Payman Jebelli was appointed as the organization's chief. Jebelli chose Vahid Jalili of Paydari as his deputy for television and the latter appointed several party members as the heads of the broadcaster's key channels. This is going to give Paydari the upper hand in the next parliamentary elections in March as there are no private channels in Iran and the state television has exclusive broadcasting rights based on the country's Constitution.
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