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I put this on my blog more or less cross-disciplinary views on world affairs physicist, photographer, writer and information eläkeläisvaarin viewpoint. Stories similarities to actual events and persons are intentional, although anecdotal. Mainly texts are in English, but you might find some in English. Finders Keepers, Loosers Weepers!
The last posting was the story of the grids and resolutions. They seem to be as confused as the former man's porridge and gruel, so I'll try here to clarify concepts. Cross-scientific style, of course, that lawyers quoting messy concepts explained and clear concepts of the mess.
Perhaps the biggest reason sotkuisuuteen of these concepts selfcooking center is that they are used in different contexts very confused. When the purposes of PPI, so may talk to the DPI to or LPI to. Spiced soup will, of course, the unit of measurement used in inches and centimeters mixed up.
Let's move out PPI to. It's probably most concrete of all - I guess. With a big time of writing, the PPI refers to the number of pixels per inch. With a little written (PPI) PPI's numerical value. The SI unit is your installation dimensions selfcooking center PPCM or pixels per centimeter. Even in these will not be very systematic.
When Photoshop is supplied with the camera otetetun image data to the Document Size The physical dimensions of the cell, then the cell resolution is automatically displayed. With this camera, it is, therefore, 3962.4, or 1560 ppi PPCM. Cell length and width dimensions tiettysti selfcooking center must know to make this metosia can be used. Should be noted that the Resample Image box should now leave unchecked. Dense are the primary or the camera unit cells stack. The resolution of the camera's sensor can be reduced so that one image pixel values consists of several cell pixel.
This observation shown in the illustration how the different selfcooking center colors are located on the so-called alkeiskennot register. bayer matrix using cells. Green dominance due to the fact that the eye is more sensitive to the green color than blue, and red. Green color information is the sense of sight is more important than the other two primary colors. Therefore, this logic cells. These different colors sensitive to alkeiskennoja I Canonissani is therefore 5616 x 3744 = 21026304. Figure alkeiskennojen observation is of course much less for reasons selfcooking center of clarity. selfcooking center
Someone may wonder chapters Pixel Dimensions: 60.2 M. This figure is three times the number selfcooking center of pixels selfcooking center in relation to (do not get bother to wonder rounding, they are called. Higher digital math). 60.2 M means that the picture selfcooking center is 60.2 million, eight bit bytes. Each color in the image deposited in a single 8-bit byte. Three times the color of 20 million is 60 million, in round figures. selfcooking center
Close up on my screen. One of the square-shaped three-color combination is a screen pixel. While the ruler is not exactly in line, so the image can be calculated as a screen resolution of at best less than 40 PPCM, which is less than 100 ppi. The standard is probably 96 ppi.
Screen pixel contains three colors. Maybe this is a good stress the fundamental selfcooking center difference, which is the camera's sensor pixel and the pixel of the screen. Alkeiskennot camera selfcooking center sensor, i.e., pixels of the image-forming units, are sensitive to different colors. selfcooking center In fact, alkeiskenno register only the color through the filter from the light. The final color image composed of a complex mathematical algorithm to several adjacent cells received selfcooking center light information is used.
Screen resolution can be adjusted to lower just the same way as in the resolution of the camera. Then just more of the screen alkeispisteistä corresponds to the image pixel. However, the word is often used to mislead the resolution of the screen as a measure of the number of pixels. However, the resolution is the resolution of measurement. Pixels or dots or whatever the length, area or per unit volume.
The image file also defines the resolution. For example, in some picture instructions explain that the images must be delivered to 300 ppi resolution. It generally indicates that the issuer of the digital manual of the basic concepts are more or less obscure.
Take for example, a passport photo, the dimensions of which are precisely determined. Passport photo guidelines reads as follows: "Image dimensions must be exactly selfcooking center 500 x 653 pixels. None of pixel anomalies are not accepted." The resolution does not say anything. There is no need at all, because the passport artificial equipment is calibrated in such a way that the 500 x 653 pixel equal to the passport photo printtautuu selfcooking center just the right size.
Here my passport is determined by the physical size of the screen resolution. My screen image width is 13.0 inches. When the levyssuunnassa the number of pixels is 500 pixels, then it can be concluded on the screen, the resolution of the already deduced above about 40 PPCM.
If the image file you want to print to a specific question