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6

Put your glass vertically so that you can see through it (A). Put a piece of black cloth far away behind the glass (B). Put a flash on top of the glass, almost (C). Use some cardboard or some reflective surface so the light only illuminates the glass (D). Put the camera out of the light. The light from the flash is much greater than the light coming from ...


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Any interchangeable lens camera will do. Invest in: Lighting (for things that are physically textured, side vs head-on lighting makes a world of difference). You want to be as flexible as possible regarding color and position of lights. A macro lens. A secondhand, adapted, older, manual focus macro lens of 50 or 60 mm (made eg by Minolta, Nikon, Leitz, ...


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This is actually not a texture, but a halftone pattern. Many graphics applications are able to render images with halftone patterns for printers with few colors (e.g. 1 or 4). Related question at Graphic Design SE: How make this halftone round texture?


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Generically, It's also called a moiré effect or pattern. It is not limited to printing halftones but can be produced with any repeating regular line or dot pattern interfering with (overlaid onto) itself. EDIT: While some may erroneously refer to it as a halftone or a screen pattern, the appearance of "circles" or rosettes are caused by the interference ...


4

It's much easier to get a realistic looking background in camera. It's much easier to get a nice looking background in Photoshop. Some people's philosophy is to do as much as possible in camera and leave Photoshop out of the equation or only only as a last resort. Some people's philosophy is to get the highest quality results possible using whatever tools ...


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Update: @StephenG accurately noted that for such a large image, IM (ImageMagick) convert may cause problems. The simple convert command could lead to 100% of your CPU being used, or freeze, hang, or crash. One solution (untested, the download of the 10GB file keeps on aborting) is to do the following: env MAGICK_TMPDIR=/path_to/10GB/hdd_space \ convert ...


3

One of the main purposes of lightboxes is to minimize texture by placing dispersed light from almost every angle on the subject. If you want to show textures, you need to use more directional lighting at a fairly steep angle, compared to the axis of the lens, to created stronger shadows. Shadows are what shows the texture of 3D objects in a 2D photograph.


2

In addition to the Rosco kit you mentioned it might also be worth taking a look at LEE filters. They offer a visual comparison of their diffusion materials. There is also a quite useful comparison of different bounce and diffusion materials by Matt Porwoll. While these demonstrations are mainly intended for larger-scale photographic and cinematographic use,...


2

You cannot do this without very advanced image processing skills. In games, there are 3D models of objects which get "skinned" with a texture. This texture needs to be wrapped around the model just like you'd wrap paper around a gift package. You do not have the necessary 3D information here to conform a texture to eg. the facial contours, so this approach ...


2

These circles are defocused images of small bright points. You can make a test with a led diode or another point light source. Focus far behind it and with the same lens and aperture you should see similar circle, but just one. The actual look of these circles depends on the lens design. They are pretty much rounded here, which suggests that the lens was ...


1

Diffusion evens light out by scattering the light (so that it mixes together), which inherently spreads the light out, which inherently reduces the light density (power). Diffusion also absorbs/blocks some light... It is quite probable that you will loose 50% of the available power (1 stop) in order to even such a light source out; it's quite likely you will ...


1

For environmental mapping take a look on this ugly notes I did sometime ago. I will update them later. http://www.otake.com.mx/Apuntes/Imagen/EnviromentMaps/ For simple textures you need to take the photo of the texture with the most uniform difuse ligth you can. You can make a light tent for example. This is to isolate the difuse map from shadows that you ...


1

You mean something like this? What I did was searched for simply "satin" on Google, found a random image of a satin-like texture, and downloaded it. It doesn't matter what color it is. Once I imported it into Gimp, I converted it to greyscale with the Colorize effect (unless you still want the color, then don't do that step). Then I dragged in any old ...


1

the creases and texture of the dress are not visible If you want to emphasize folds and texture, you need shadows. Think about a brick wall -- if you shoot it with very soft light, or with light coming from the direction of the camera, the wall will look very flat. If you shoot it with very directional light coming from the side, every little bump on the ...


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Here is my attempt : I've used G'MIC filters "Remove hotspots" and "Smooth [Bilateral]" to achieve the cleaning.


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There are some sophsticated filters that are implemented in software such as the G'MIC plugin of GIMP. You can try this online here. I've never used G'MIC for texture removal and I have not installed it on my present computer, so I'm not sure if it has a good filter that works well for this case. Now, if some standard method doesn't work well, you can ...


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I just downloaded ImageJ (actually, I installed it from the Ubuntu software centre) and the picture in the question you linked to, tried following the instructions given in the answer and got a pretty nice-looking result. Here are the exact steps I followed: Start ImageJ. File -> Open..., select image to be fixed. Process -> FFT -> FFT Select pencil tool ...


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I think it depends on what you want to achieve. In my opinion, if a viewer says "nice photoshop" then I have failed in processing. It would be like saying of a painting that you like the brushstrokes without commenting on the content of the work. The best background is less dependant on what is real or manufactured and more on what makes the composition ...


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