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MATLAB (Matrix Laboratory)

MATLAB is a software and a package to implement signal processing. Using this tool one can create and test various signals & systems. These signals and systems can be tested for various parameters and operations. The real time simulation of signals, images, audio and video are performed using MATLAB. Various programs, syntax, applications and uses of MATLAB and signal processing can be discussed in this category. As the need for signal processing is increasing day by day, there is a need for separate category.

500 Questions

How do you call a function in GUI in matlab?

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Asked by Wiki User

Just type it in the command line. That will call functions, scripts, load data (that are in the correct directory).

What is an indexed image?

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Asked by Wiki User

Typical uncompressed colored images use 24 or 32-bits per pixel of an image (RGB 8-bits per color). After some basic math of lets say an 8 Megapixel image quickly becomes a very large file on a computer. A type of compression used is to select some colors (typically called a palette) and for every pixel in the original image select a color in the palette that is closest to it (some other techniques exist to make it more accurate, ie dithering). If the palette of colors is smaller than 256 colors than a single byte (8 bits) is all that is needed per pixel to indicate what color in the palette should belong at that pixel.

Why transition capacitance called so?

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Asked by Wiki User

Transition capacitance is the capacitance that is accumulated between two terminals as an electrical charge is carried between them. In a diode, this is the diffusion from anode to cathode of a diode in forward bias mode.

What does matlab stands for?

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Asked by Wiki User

In their own words, "MATLAB is a high-level language and interactive environment for numerical computation"

How do you convert analog signal to digital signal?

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Asked by Wiki User

Various analog to digital converters are available for this purpose. They are basically made up of operational amplifiers.

The other way is to convert the analog signal into samples. Then converting these samples into quantization levels. These quantization levels are then converted into 1s and 0s.

What is edge detection?

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Asked by Wiki User

Edge detection generally applies to a square wave signal, such as a clock pulse or a trigger pulse. Then the edge detection comes from either using the rising voltage, or the falling voltage of the signal (usually a square wave) to trigger the next event. Using the falling voltage implies a delay in the signal and the rising pulse to trigger an immediate `step` in the circuit.

What are the Advantages of using image processing software?

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Asked by Wiki User

Advantages: you can remove unwanted objects, adjust exposure, saturation, hue, levels, sharpness, and more. Disadvantages: o_O? Disadvantages??? None, unless you're one of those people who just can't stand improved image quality.

Who invented MATLAB?

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Asked by Wiki User

HYMAVATHI.B

Invented the greatest MATLAB.

How do you cut and paste an image from Google images?

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Asked by Wiki User

by clicking right click and selecting save as.....then ur image wil be saved

What is use of filter in image processing?

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Asked by Wiki User

Very many actions taken while processing images can be referred to as filtering. There are distortions and blurring and edge detection and color enhancements and all sorts of effects that fall under the "filtering" domain.

What is the sharpness and clearness of an image?

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Asked by Wiki User

i asked you a question u could not provide me with an answer. and now you are re- asking me my question. does question answers question?

How do you change tif image to JPEG image?

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Asked by Wiki User

Open it in your image editing program (this can include Microsoft Paint!) by clicking File>Open and browse for your TIF file, and click Open.

Now, with your image filling up the screen in your program (assuming that it's Microsoft Paint) click File>Save As and in the drop-down box for 'Save As Type' change the format to 'JPEG (*.jpg,*.jpeg,*.jpe,*jfif)' then click 'Save' and it will be saved in the new location as 'YOURFILENAME.jpg'

Why matlab is so called matlab?

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Asked by Wiki User

MatLab means MATrix LABoratory. It converts the signals into matrices and performs various operations on them. Hence, it is used mainly in applications where there is a need to convert data from one form to the other.

Why is the npn transistor is better than pnp transistor?

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Asked by Wiki User

When NPN transistors are used in the most common amplifier configurations, they require a power supply with positive polarity with respect to common terminal. PNP transistors instead require a negative power supply. Over many years the positive power supply has become a design standard. This means that, for "Common Emitter" and "Common Collector" amplifiers, NPN transistors must be used. The same was once true for logic circuits: for positive power supplies, the logic gates would be built from N-channel FETs. But since the 1980s an improved setup has been used: CMOS logic which is built from approximately equal numbers of P-channel and N-channel transistors.

npn is mostly used because in npn electron current is greater the hole current.whereas in pnp hole current is greater than electron current. it is a people choise and basicaly and a manufacture choice. nobody wants to be negative. logic chips were developed for positive potential that doesn't mean that these chips cannot be used at a negative potential quite the contrary as long as the chip sees a positive voltage across them they work. you may develop a computer whereb\y the logic is gnd as positive and -5v as -vss. so you see it is a human choice.

How are virtual images and real images different?

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Asked by Wiki User

A virtual image is a copy of an object formed at the location from which the light rays appear to come. Whereas a real image is a copy of an object formed at the point where the light rays actually meet.

What is definition of preprocessing in image processing?

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Asked by Wiki User

Preprocessing images commonly involves removing low-frequency background noise, normalizing the intensity of the individual particles images, removing reflections, and masking portions of images.Image preprocessing is the technique of enhancing data images prior to computational processing.

What is filtering in image processing?

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Asked by Wiki User

A filter is an effect that can be added to an image that affects the overall appearance, or apearance of a selected area, of an image.

List of electrical core companies in chennai?

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Asked by Wiki User

List of Embedded System companies in Chennai

1. ACME Technology Pvt Ltd

2. Agnie Consulting(I) Pvt.Ltd

3. Alcatel-Lucent Chennai

4. American Mega Trends Pvt.Ltd

5. Ansaldo STS India Pvt. Ltd, Chennai

6. Apna Technologies

7. Appasamy Associate

8. Aricent Technologies

9. Arista Automation Pvt Ltd

10. Ashva Technologies Pvt Ltd

11. Atheros Communications

12. Atmel

What is the impact factor of European journal of scientific research?

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Asked by Wiki User

1. IOSR Journal of Computer Engineering (IOSR-JCE) 1.686 2. IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) 1.452 3. IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) 1.485 4. IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) 1.586 5. IOSR Journal of VLSI and Signal Processing (IOSR-JVSP) 1.458 6. IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT) 1.325 7. IOSR Journal of Humanities and Social Science (IOSR-JHSS) 1.589 8. IOSR Journal of Pharmacy and Biological Science (IOSR-JPBS) 1.138 9. IOSR Journal of Business and Management (IOSR-JBM) 1.458 10. IOSR Journal of Dental and Medical Science (IOSR-JDMS) 1.576 11. IOSR Journal of Agriculture and Veterinary Science (IOSR-JAVS) 1.485 12. IOSR Journal of Applied Physics (IOSR-JAP) 1.345 13. IOSR Journal of Applied Chemistry (IOSR-JAC) 1.327 14. IOSR Journal of Mathematics (IOSR-JM) 1.312 15. IOSR Journal of Nursing and health Science (IOSR-JNHS) 1.015 16. IOSR Journal of Research & Method in Education (IOSR-JRME) 1.124

How will you know if the transistor is working or faulty?

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Asked by BonoloMariti

Impossible to give a specific answer without more information. Is it a BJT or a FET?

Most general answer is you first have to understand the circuit using the transistor and what it's supposed to do. Then,

1. Check that the power supply voltages are correct.

2. Check that the DC biases are correct.

3. Check that the input signal is correct.

4. Check the output.

But you have to know in advance what to expect.