An Introduction To JavaScript Blobs and File Interface

An Introduction To JavaScript Blobs and File Interface

What is a Blob?

A blob object represents a chuck of bytes that holds data of a file. But a blob is not a reference to a actual file, it may seem like it is.

A blob has its size and MIME type just like a file has. Blob data is stored in the memory or filesystem depending on the browser and blob size. A blob can be used like a file wherever we use files.

Most APIs for working with blobs are asynchronous. But synchronous versions of APIs are also available so that they can be used in Web Workers.

Content of a blob can be read as ArrayBuffer and therefore it makes blobs very handy to store binary data.

By Narayan Prusty

http://qnimate.com/an-introduction-to-javascript-blobs-and-file-interface/#What_is_a_Blob

Techopedia explains Binary Large Object (BLOB)

Techopedia explains Binary Large Object (BLOB)

Binary large objects are primarily used in all database software. Generally, database software classifies binary large objects into two types: semi-structured data and unstructured data. XML files are categorized as semi-structured data, whereas images and multimedia data are unstructured data types. Both of these BLOBs are generally not interpretable by the database.

BLOBs are used mainly for storing pictures, sounds and multimedia files, so they have a comparatively larger size than most data types and can contain up to gigabytes of data. Besides databases, the term BLOB may also refer to a visual image in computer graphics that has a unique shape.

https://www.techopedia.com/definition/788/binary-large-object-blob

BLOB (binary large object)

September 2005

BLOB (binary large object)

Posted by: Margaret Rouse WhatIs.com Contributor(s): Tom Parker

1. In computers, a BLOB (binary large object), pronounced BLAHB and sometimes spelled in all lower case, is a large file, typically an image or sound file, that must be handled (for example, uploaded, downloaded, or stored in a database) in a special way because of its size. According to Eric Raymond, the main idea about a BLOB is that the handler of the file (for example, the database manager) has no way of understanding the file in order to figure out how to deal with it - it might as well be a large piece of coal, but there it is and now what? Other sources emphasize that the term was coined to refer to big data objects and to connote the problems they sometimes present in handling them. One application that deals with BLOBs is the database storage of large multimedia objects, such as films and television programs.
2. In computer graphics, a blob (lower case) is a visual object that, according to one user of the Persistence of Vision ray tracer, a freeware image creation tool, has "an interesting shape type" that is flexible and amenable to animation.
3. In general, a blob is an amorphous and undefinable object. There are blobs in astronomy as well as in unidentified flying object studies. There was a science-fiction movie called "The Blob."

https://searchsqlserver.techtarget.com/definition/BLOB

What is The Blob?

What is The Blob?

Blobs, Layers, and Nets: anatomy of a Caffe model

A Blob is a wrapper over the actual data being processed and passed along by Caffe, and also under the hood provides synchronization capability between the CPU and the GPU. Mathematically, a blob is an N-dimensional array stored in a C-contiguous fashion.

Caffe stores and communicates data using blobs. Blobs provide a unified memory interface holding data; e.g., batches of images, model parameters, and derivatives for optimization.

Blobs conceal the computational and mental overhead of mixed CPU/GPU operation by synchronizing from the CPU host to the GPU device as needed. Memory on the host and device is allocated on demand (lazily) for efficient memory usage.

The conventional blob dimensions for batches of image data are number N x channel K x height H x width W. Blob memory is row-major in layout, so the last / rightmost dimension changes fastest. For example, in a 4D blob, the value at index (n, k, h, w) is physically located at index ((n * K + k) * H + h) * W + w.

• Number / N is the batch size of the data. Batch processing achieves better throughput for communication and device processing. For an ImageNet training batch of 256 images N = 256.
• Channel / K is the feature dimension e.g. for RGB images K = 3.

Note that although many blobs in Caffe examples are 4D with axes for image applications, it is totally valid to use blobs for non-image applications. For example, if you simply need fully-connected networks like the conventional multi-layer perceptron, use 2D blobs (shape (N, D)) and call the InnerProductLayer (which we will cover soon).

Parameter blob dimensions vary according to the type and configuration of the layer. For a convolution layer with 96 filters of 11 x 11 spatial dimension and 3 inputs the blob is 96 x 3 x 11 x 11. For an inner product / fully-connected layer with 1000 output channels and 1024 input channels the parameter blob is 1000 x 1024.

For custom data it may be necessary to hack your own input preparation tool or data layer. However once your data is in your job is done. The modularity of layers accomplishes the rest of the work for you.

by BAIR

http://caffe.berkeleyvision.org/tutorial/net_layer_blob.html

How to download web.tv videos?

Download Online Video Using VLC Media Player

https://www.vlchelp.com/download-online-video/

VLC Media player is not only a great tool for saving online audio streams, but its features allow us to even download online videos. Online videos that normally play in browsers can be played with VLC Media Player. Additionally, those playable online videos can also be saved to your personal computer. Not many are aware of this feature.

The process of downloading online video from video hosting sites is quite similar to the process of downloading streaming audio. There are two methods that you can follow for this. They are explained below in detail.

How to download blob videos? - Web.tv 2019

How to download Web.tv videos? Как скачать видео Web.tv? Web.tv videoları nasıl indirilir?

https://quesch.web.tv/video/turkuler-sevdamiz-atesi-askina-semah__xedbvpo6h3g Türküler Sevdamız - Ateş-i Aşkına (Semah) "blob:https://quesch.web.tv/fe532b51-a5c1-4b13-b16f-350518a6d900"

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How to download Pscp.tv videos?

You can also download a plain version of this JSON blob

https://urlscan.io/result/3487c01f-4002-4368-91cf-3f054083f8ad/jsonview/

www.pscp.tv 52.59.136.3 

URL: https://www.pscp.tv/w/1YqKDRQoALYJV

Submission: On September 08 via manual (September 8th 2017, 5:28:58 am) from RO

"blob:https://*.pscp.tv/"

JSON

This is the "raw" view of the result in our database. Use it to make sense of the result. Let us know if you spot anything odd.

How to download blob videos? - Pscp.tv 2019

How to download Pscp.tv videos? Как скачать видео Pscp.tv? Pscp.tv videoları nasıl indirilir? Beykpour and Bernstein came up with the idea for Periscope while traveling abroad in 2013. Beykpour was in Istanbul when protests broke out in Taksim Square. He wanted to see what was happening there, so he turned to Twitter. While he could read about the protests, he could not see them. They started the company in February 2014, under the name Bounty. They raised $1.5 million from Founder Collective, Scott Belsky, Maveron, Google Ventures, Menlo Ventures, Bessemer, Stanford – StartX and Sam Shank in April 2014.

Beylikdüzü’ndeyiz. #HerŞeyÇokGüzelOlacak #YeniBirBaşlangıç https://www.pscp.tv/Ekrem_Imamoglu/1vOGwqNpNDLxB "blob:https://www.pscp.tv/7dd34140-3115-4ab8-b642-05a02f2daa09"

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How to download Taptap.tw videos?

Android / iOS Gaming Philippines - SOULWORKER: ZERO 2019 (KOREA)~

https://www.facebook.com/AdminGamerz/posts/874622826211203

TapTap (Pre-Register): https://www.taptap.tw/app/164001

Anime Online- RPG are Now AvailableIn CBT Closed Beta Test Ver, Korea.!!!(Use the Game-translator application)Game-Trailer:

"blob:https://www.taptap.tw/3f50dbe2-1f22-45dd-883a-ec8f3daabbab"

How to download blob videos? - Taptap.tw 2019

จะดาวน์โหลดวิดีโอ Taptap.tw ได้อย่างไร? How to download Taptap.tw videos? Как скачать видео Taptap.tw? Taptap.tw videoları nasıl indirilir? TapTap is a game recommendation platform and a high-quality players community. Available in Android, iOS, and Web TapTap recommends some superb games reviewed independently by editors everyday. Players can download, buy, rate, discuss games here, and discover more superb games by communicating with other players. TapTap only includes official packages (some games are limited by the official regional distribution restrictions, will limit the download area), no interest partition with developers, which is the first third-party platform to support the payment of official Android games in China.

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