Post-production is the process of editing and enhancing photographs or videos after they have been captured. It includes a range of techniques and tools, including software applications such as Adobe Photoshop or Adobe Premiere Pro, that can be used to enhance, manipulate, and improve the quality of the images or videos.

Here are some common techniques used in post-production:

1. Color correction and grading: This involves adjusting the colors of an image or video to make them more accurate or to create a specific mood or tone.
2. Retouching: This involves removing blemishes, smoothing skin, or enhancing specific features to make the subject look their best.
3. Cropping and resizing: This involves adjusting the composition and size of an image to make it more visually appealing.
4. Adding special effects: This involves adding visual effects, such as text overlays, transitions, or filters, to enhance the visual impact of the image or video.
5. Noise reduction: This involves reducing digital noise or grain in an image or video to create a cleaner and more polished look.
6. Audio editing: This involves editing and enhancing the audio in a video, including adjusting levels, adding effects, or adding music or sound effects.

Post-production can take a significant amount of time and skill, but it is an essential part of the creative process for many photographers and videographers. With practice and experience, you can learn to use these tools and techniques to create stunning images and videos that truly stand out.