Image Enhancing Techniques | NZ Photo Art

Image Enhancing Techniques

Because of our knowledge of optics, lighting, perspective, Photoshop and several other image processing programs and literally hundreds of post-production techniques, we can provide cost-effective solutions to practically every problem. Digital image processing is the use of computer algorithms to perform image processing on digital images.

Image enhancement

Homomorphic filtering is a technique for image processing, involving a nonlinear mapping to a different domain, in which linear filter techniques are applied. This is followed by mapping back to the original domain. Since illumination and reflectance combine multiplicatively, the components are made additive by taking the logarithm of the image intensity, so that these multiplicative components of the image can be separated linearly in the frequency domain. High-pass filtering is used to suppress low frequencies and amplify high frequencies, in the log-intensity domain.

Gamma correction

Gamma correction, gamma nonlinearity, gamma encoding, is the name of a nonlinear operation used to code and decode luminance or tristimulus values in images.

Dynamic imaging

Dynamic imaging is the amalgamation of digital imaging, image editing, and workflow automation. It is used to automate the creation of images by zooming, panning, colorize and performing other image processing and colour management operations on a copy of a digital master.

Digital “darkroom”

The term “digital darkroom” is the hardware, software and techniques used in digital photography that replace the darkroom equivalents, such as enlarging, cropping, dodging, burning, contrast change, brightening, vibrancy, saturation, change colour depth, etc.

Background Removal

Image masking and clipping path, also known as deep etching, is processes of carefully outlining the photographed product by hand in order to separate it from the background. The photograph may then be detached from the original background and applied to a transparent background. This process allows our clients to have more flexibility when utilizing the image in page layouts and publications. Clients utilising this option will receive their photograph(s) in a layered PSD (Photoshop) format or a PNG file format. Many clients opt for this service so they can change the background to something different, either utilising another background colour or placing it on top of another image.


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