Advice 1: How to remove grey background

Often when scanning the documentation background of the obtained image becomes gray. This complicates detection and other follow-up work with text. There are ways to clean such documents in format pdf and djvu.
How to remove grey background
You will need
  • program ScanKromsator.
Instruction
1
Download and install the program ScanKromsator to remove the grey backgroundand the scans. You can do this by going to the official website of the manufacturer of the program djvu-soft.narod.ru/soft/#scan. Select an application version and click the link "Download".
2
Install the software on the computer to remove the grey background with a djvu or pdf file, open it in the program. Go to settings, applications, check the box next to options Enhance image, then click on the button Gray enhance, instead you can also use the grief I feel key B.
3
Install settings clean backgroundand tab Background cleaner. Set the Cleaner passes equal to one to remove the background of the scan. If the document is very little color contrast between the backgroundω and a text, in this case, the check box must be selected next to the parameter Correct low contrast, it will allow you to choose the sensitivity of the recognition of textual information on the background ofE.
4
Start with a value of 20-25, and consistently decrease at 5. After Chromator will remove the background from the scanned image, it will check the presence of text, which contrast against the backgroundcolor ovomu greater than or equal to the specified threshold. If such a value is found, the color of this point will not change or will be replaced with pure black.
5
Navigate to the Quality tab, click Enhance, set the Cleaner passes equal to one. Next, uncheck the option Protect black pixels. Make available to scan the illustrations, filled with gray area Exclude to protect from damage.
6
Preview of cleaning the grey backgroundand using the Preview button with the resample tab Quality. Adjust the Sensitivity (five to thirty) to achieve the removal of the background. The more contrast between letters and backgroundof om, the more set the value of this parameter. Go to window Protect black and turn it off.

Advice 2: How to arrange a photo session at home

The art of photography is a kind of plastic art that combines technology and painting. The cameras, which are at the dawn of its existence had a small set of functions (only black and white pictures, only film, other restrictions), is now common to almost necessities. And arrange a photo shoot using even the weakest of the apparatus is possible even in the conditions of the apartment.
How to arrange a photo session at home
Instruction
1
Shooting is divided into the infinity (in nature, on the street) and Studio. Shooting in any indoor environment can be attributed to Studio.
2
View some photos of the Studio. Note the background: it is uniform, often white. Sometimes used other neutral colors: grey and black. For creating special effect you can use chromatic color (from the spectrum), but in this case, the clothes of the model should be in harmony with it, not merge, but not to cause too aggressive contrast. In the background can serve as a wide long curtain without ornament and pattern.
3
To create terrain around the model only the background, and the interior. In this case it is better to remove all personal belongings from the frame.
4
Lighting. The best option is natural sunlight, especially morning or evening. It should not blind neither the camera nor the model, that is, be on the side or top of the photographer and the model. if there is no sun, you can use lamps, removable flash and reflectors – a special round disc, covered with a white cloth or foil that reflect light in dim, less aggressive form.
5
Clothes and make-up of the model depend on the artistic ideas of shooting. The choice of colors subject to the General rules of chromatics.
6
The construction of the frame depends largely on the ideas, but to have the main items (including the model) is better in the center of the frame, sometimes a little higher. Experiment, set the camera and model into any position what will fit, take multiple angles of the same position, you will definitely understand exactly what you need.
Is the advice useful?
Search