This paper presents a set of techniques for combining flash and no-flash image pairs to enhance the quality of low-light photographs. The flash image captures high-frequency detail but changes the scene's appearance, while the no-flash image captures the ambient lighting but is noisy. The authors propose methods to reduce noise in the no-flash image using the flash image and transfer high-frequency detail from the flash image to the no-flash image. These techniques include ambient image denoising, flash-to-ambient detail transfer, white balancing, continuous flash intensity adjustment, and red-eye correction. The key idea is to use the flash image to improve the no-flash image by reducing noise and enhancing detail. The authors also discuss the benefits of using flash/no-flash pairs for image synthesis, including better quality than either original image. The techniques are applied to a variety of images, including a candlelit wine cave, a Belgian tapestry, and a European lamp. The results show that the proposed methods significantly improve the quality of low-light photographs by combining the strengths of flash and no-flash images. The paper also discusses the challenges of using flash photography, such as overexposure, red-eye, and motion blur, and proposes solutions to these issues. The authors conclude that flash/no-flash image pairs can be a valuable tool for digital photographers to enhance the quality of their images.This paper presents a set of techniques for combining flash and no-flash image pairs to enhance the quality of low-light photographs. The flash image captures high-frequency detail but changes the scene's appearance, while the no-flash image captures the ambient lighting but is noisy. The authors propose methods to reduce noise in the no-flash image using the flash image and transfer high-frequency detail from the flash image to the no-flash image. These techniques include ambient image denoising, flash-to-ambient detail transfer, white balancing, continuous flash intensity adjustment, and red-eye correction. The key idea is to use the flash image to improve the no-flash image by reducing noise and enhancing detail. The authors also discuss the benefits of using flash/no-flash pairs for image synthesis, including better quality than either original image. The techniques are applied to a variety of images, including a candlelit wine cave, a Belgian tapestry, and a European lamp. The results show that the proposed methods significantly improve the quality of low-light photographs by combining the strengths of flash and no-flash images. The paper also discusses the challenges of using flash photography, such as overexposure, red-eye, and motion blur, and proposes solutions to these issues. The authors conclude that flash/no-flash image pairs can be a valuable tool for digital photographers to enhance the quality of their images.