It has a variety of tools that will enable you to enhance images as well as properly size them. Adobe Photoshop© is one the most powerful image editing programs used by professionals.
#Photoshop print to scale software
You may also find that various software packages may interpret the size of images coming straight from your camera differently. If you use a digital camera with a lens that can not capture images at 1:1, you will have to adjust the image size using photo editing software.
Digital images of fingerprints destined for IAFIS must have an image resolution of 1000 ppi (pixels per inch) or 500 ppi. Another consideration, especially for latent prints that are on their way to an AFIS system, is that the images not only need to be sized 1:1, but also need to be sized to a specific resolution. Digital images take more of an effort to scale correctly and an understanding of pixel size, resolution and re-sampling. Just align the scale in the image with a similar scale placed on the easel and adjust the enlarger head until the two scales are the same size. Making 1:1 reproductions in the darkroom is a fairly simple task. They may also need to take measurements from the photograph as in the case of bloodstain pattern analysis. The specialist will use this reproduction to compare to known exemplars such as a fingerprint card or inked shoe impressions. This requires a life size or one to one (1:1) reproduction of the image. Many of our evidence images will need to be examined by a specialist in order to make a determination regarding identification, uniqueness or interpretation. But, they are useless for recording evidence that has any depth, requires special filtration, existing light or oblique light photography or photography utilizing a forensic light source. fingerprint lifts, impressions developed on paper, stains on flat material etc. This reduces the learning curve because many of the controls and lenses are the same as the film based models.įlat bed image scanners make it easy to scale, by size and resolution, any flat piece of evidence i.e. Many of the cameras being used are based on their 35 mm counterparts. The technology has matured sufficiently to allow for the replacement of film based photography, in most instances. More and more investigative agencies and crime laboratories are turning to digital photography as the primary archival means of recording crime scene and evidence images.
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