Experiment-2: Basic Image Transformations Uncategorized by Ravinder Nath Rajotiya - January 31, 20250 AIM: Create a program to demonstrate Geometric transformations- Image rotation, scaling, and translation. Objective: To Learn about the geometric transformation and the code in SCILAB Commands To Apply SCILAB Commands for getting the geometric transformation on images Requirement: PC installed with SCILAB on windows OS. Theory Image Representation: It is often necessary to perform a spatial transformation to: Align images that were taken at different times or with different sensors Correct images for lens distortion Correct effects of camera orientation Image morphing or other special effects Image rotation involves rotating an image by a certain angle. This technique is commonly used to correct image orientation, align objects, or create visually appealing effects Image scaling involves resizing an image to a desired size. This technique is useful
Experiment-1 Basic Image Operations Uncategorized by Ravinder Nath Rajotiya - January 31, 20250 Experiment-1: AIM: To understand the basic operations on images in SCILAB Objective: To Learn basic SCILAB Commands To Apply SCILAB Commands for Logical and Arithmetic Operations on images Requirement: PC installed with SCILAB on windows OS. Theory Image Representation: Assume that an image f(x, y) is sampled so that the resulting digital image has M rows and N columns as shown in the figure on right. The values of the coordinates (x, y) now become discrete quantities. If we consider integer values for these discrete coordinates, then it becomes a digital representation. The image data can be written in Matrix form as shown below and we can then perform various operations on this data. Basic Operations: Read Image Img=imread(‘path to image’); //give absolute path if it
Experiment-10: Automatic Room Lights using Arduino and PIR Sensor IoT Experiments by Ravinder Nath Rajotiya - November 5, 20240 AIM: Automatic Room Lights using Arduino and PIR Sensor. Objective: We will be able to: Understand the working of PIR Sensor Understand the interfacing of PIR with arduino and Relay Develop real time program to Automatically control Room Lights Requirement : PC with internet, Arduino board, breadboard, PIR Sensor, Relay, LED, Jumper Wires Theory: PIR Sensor: A PIR sensor is an electronic sensor used in motion detectors such as automatically triggered lighting devices and protection systems that measure devices emitting infrared light in their field of view. Each body with a temperature above zero releases heat energy, which is in the form of radiation. PIR sensors detect infrared radiation that is reflected or released from the target instead of measuring or sensing heat. If the sensor detects an animal, insect, or a
Experiment-9: DHT11 Humidity Temperature Monitor on ThingSpeak with NodeMCU IoT Experiments by Ravinder Nath Rajotiya - November 4, 2024November 5, 20240 DHT11 Humidity Temperature Monitor on ThingSpeak with NodeMCU Objective: It explains how to log Humidity & Temperature data on the cloud. We can use Thingspeak as a cloud service provider and DHT11 to measure temperature and humidity. Requirement: NodeMCU ESP8266 Board, DHT11 humidity and temperature sensor, Connecting Wires, Breadboard Theory DHT11 Humidity & Temperature Sensor: The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analog input pins needed). It’s fairly simple to use but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds,
Experiment-8 : To configure nodeMCU ESP8266 12-E in station mode IoT Experiments by Ravinder Nath Rajotiya - November 4, 2024November 4, 20240 AIM : To configure nodeMCU ESP8266 12-E in station mode, and indicate the connected status on the LED. Objective: To configure ESP8266 as a station To establish communication between Access point and the station nodeMCU ESP8266 station. To blink the LED while searching for SSID and continuously glow when connected Requirement: Breadboard NodeMCU ESP8266 12-E One LED to indicate connected status One 220 Ohm Resistor Theory: Mode of Operation of ESP8266 - nodeMCU ESP8266 can operate in the following modes: Station (STA) Only Soft Access Point (Soft AP) Both the Soft Access Point and Station (Soft AP +STA) To play around with the ESP8266 WiFi module, you can program it in two modes: Station (STA) or Access Point (AP). Station (STA) Mode In station mode, ESP8266 will act just like