Construcción de un prototipo electrónico para la digitalización de imágenes registradas en material fotosensible para cámaras fotográficas que usen lente macro.

Abstract

An enhanced version of an image digitizer device designed for digitizing 35mm slides was developed utilizing photosensitive material. This upgraded device allows precise control over RGB color parameters and light intensity, employing a Canon M50 camera with a 28mm macro lens for image capture. The development process involved multiple stages to ensure the functionality and efficiency of the system. The construction process included various stages; the first stage, the sensor stage, was responsible for detecting the initial and final positions of the camera base during movement. The next stage involved the input and visualization parameters, where an HMI (Human-Machine Interface) screen was used to control the RGB LED matrix and adjust the distance parameters for optimal image capture. An analog mode, operated via potentiometers, provided manual control over color settings. In the processing stage, an Arduino Mega received and processed data, ensuring seamless communication between components. The actuator stage executed these processed instructions, activating both the RGB LED matrix and a NEMA motor, which controlled the focus movement of the camera. Finally, the image acquisition was completed using the Canon M50, and the digitized images were stored on a PC for further analysis. During the color testing phase, the highest coefficient of variation observed was 4.52%. In comparison, the movement of the worm screw exhibited a coefficient of variation of 10.78%, demonstrating the precision of the mechanical movement. Through Graphic Design, students evaluated the prototype with a score of 4.47 out of 5, highlighting the quality of the captured images. It was concluded that the device represents a significant advancement in functionality and compactness. However, further optimization of the user interface, particularly the HMI screen, is recommended for future iterations.