How to reduce the size of the image to contrast to post to the Web.

How to reduce the size of the image to contrast to post to the Web.
 First time many people come to form a web. I just use the new training is short and then post them. Without knowing. To zoom into every detail in the image will be lost. The images we zoom down Definition is not equal to the original sample A.

 

So every time before we could take pictures to post suggest that it should use the Unsharp mask (we will be able to adjust more precisely sharpen plain) every time.

 

In example B as a short video of the original size, down to 3800 Pixels 800 Pixels at once and then use the Unsharp Mask command 500/0.2 (see illustration below offline) to see that the image contrast in the image A very obvious.

 

 However, once the zoom. The big picture down to a small picture it is. The details are missing quite a lot.
There are other ways to help preserve image detail and then provide. And to add further dimensions of the image with

That is to zoom down a little at a time 500 Pixels may then use the Unsharp mask along with each.

Preview shows you how to shrink the image.

 

3800 pixels ----- Image size ----> 3000 Pixels / Unsharp mask -amount 200 / Radius 0.2 /Threshold 0
3000 pixels ----- Image size ----> 2500 Pixels / Unsharp mask -amount 200 / Radius 0.2 /Threshold 0
2500 pixels ----- Image size ----> 2000 Pixels / Unsharp mask -amount 200 / Radius 0.2 /Threshold 0
2000 pixels ----- Image size ----> 1500 Pixels / Unsharp mask -amount 200 / Radius 0.2 /Threshold 0
1500 pixels ----- Image size ----> 800 Pixels / Unsharp mask -amount 500 / Radius 0.2 /Threshold 0 

 

Final amount may be increased to 500 for greater clarity.

 

From C to preview that image is sharp. Clear up another level. A greater depth. And detailed in the dark better. View from the area. Written in a web video. In the shadow of the glass to see the details.

 

This is how a successful model, which was the year that is of course, but if it is really thoroughly. Each time shrink down. Unsharp mask must be set to vary with the resolution and image size. Which each require expertise How to privacy that is not enough and too sharp edge image up or as a tablet I was offline.

Preview may be hard to do in order to sharpen the differences more clearly by comparing images.

(Rule of Third)

(Rule of Third)
The main position of the photo. Is one element that could cause actual results of the concept. And feel. Proper positioning of the focus in the picture. Another thing that is important. Popular and common is that? three rules?

The third rule says. Whether the image is vertical or horizontal matter. If we divide the image into three parts. Both vertically and horizontally. Then drag the split image as all three wires. All four will be the intersection point where the intersection of these four lines. Is an appropriate location for the placement of the object you want to highlight the main features of the other details. A significant portion of the second coming.

The positioning of the main features do not need to be very limited. May fall at around four this point.
 

 In the example can be seen that the focus is the intersection. Make the image look perfect.

 In vertical as well.

 Or will be in a position similar time.


In addition, we can also use the line is divided into three vertical lines in the ratio has arranged a placement in the skyline along the lines that will provide the land and the sky is the ratio of 3:1 or 1:. 3, but should not be divided 1: 1.

 In the example can be seen that The ratio between the ground and the sky is also 1:3 where the focus is located at the intersection. Make the image look perfect. And more attractive. We can also be applied in the composition of other images. Using the same principle.

Why do White balance?

Why do White balance?
Almost all digital cameras will be able to white balance the camera quality. Provides functionality for users to adjust multiple choice. This article discusses the principles and use white balance to get the correct color images come out properly as it should be the most
Why do White balance?
Because of our human ability to adjust the color perception by changing lighting conditions such as If we look at white paper under the sun. We can see that the paper is white. When we move to look the same sheet of white paper umbrella at first we could see that the paper in a different color from the color of the sun because the light has changed. But a few minutes later. Our eyes and brain. Adjust the perceived relative to the lighting conditions to see that now. As a result, we see the white paper. This phenomenon is called chromatic adpatation but because the digital camera with CCD is a sensor (compared with the bell in the eye) can not modify the sensitivity color like the eyes when we are shooting white paper under daylight. Suppose that the RGB from the camera as R255, B255, G255 (if the RGB pixel any equal pixels that are white, black, achromatic), but if we shoot white paper the same sheet with light tungsten will. the R255 B180 G200 shows that the image white paper that will stand แdongๆ orange in order to make photo paper white becomes white Dog requires software to help make up the RGB color white from the light source with a different color. each other to be the equal of any such action is called white balance adjustment by adjusting the white balance is not made only to pixels that are part of the picture, but the white do with Every pixel of the image.
Examples of white balance.
In general, the camera will make automatic white balance (Auto WB), however, are already adjusted to such a limit. Solution is only a certain level only. Observations from the three images below. Auto WB is taken with the Canon Powershot G1 camera images under different lighting conditions, images are left. daylight (6500K) is the central image coolwhite (4800K) and the right image. tunsten (illuminant A, 2856K).

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 Can see that the color chart image taken under daylight lighting and color coolwhite correct. But the image under fire Tungsten color distortion to the red rather In order to clear up the Ying of the Auto WB, try to compare Three images below the three pictures above. Picture below was taken by the same camera but the camera is set WB to daylight.

 

We can see that the left image taken under daylight lighting for accurate color. Images taken under a light coolwhite red color to the slightly distorted. And pictures taken under tungsten light will be very distorted colors. And distortion than images shot with the Auto WB herein show that the operation of the Auto WB resolve color images with accurate colors even more. But is limited in general to Auto WB will work well in the range of 4800-7500 K, if the light source color temperature is more or Less than this. Camera will not modify the color out. The camera with a professional or semi-professional functions will allow users to manually adjust the WB (called the Custom WB) by ordering the camera configuration at the WB in black and white. Don White adjustment that is most convenient. Because if the light source has already distorted the RGB color white is the most different. Picture below shows. Comparisons when setting the custom WB image under white light of daylight coolwhite and tungsten, respectively.

 

From the image above to see the image in the gray bar. Colors are more accurate than Ying Auto WB adjustment model, however, will see that part. In orange and red. Photo Tour of the fire station also has a spring color that express poorly. This is the limit between the color of the object and the color of the light sources. And that can not be corrected. In addition to setting a custom WB, white, users may adjust the location of a gray or black optional. However, errors may have more than white. Picture below shows. Comparisons when setting the custom WB White (picture left), gray bar, third from left (middle picture) and black (right image).

 

Because the color chart is created well in color, so to make custom WB on the gray or black and white images should have the same color. But Denis' images made ​​WB the middle gray will see that the picture is distorted to the blue color. Cause of the distortion caused by such objects as targets for the WB do have other colors come from contamination. If observed from the first image on the left to see that good. Gray bar at the Three red contamination from reflections of the base paste. When Gray is not gray generous, if we set the WB to the right of all the colors of the image with distortion.

Therefore, the best WB setting is still setting a custom WB, but also cautions that the object is a target of the WB should be set as an object that is a true black and white.

 

Canon IXUS 70 sent into the T100 from Sony.

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Canon IXUS 70 sent into the T100 from Sony.

Canon launches new compact camera called the Canon IXUS 70 camera person concerned comes with 7.1 megapixel (CCD sensor) size only 85.9x53.5x19.4. mm optical 3 times zoom cutting system caused by signal interference. noise introduced in Korea in person at 300,000 (KRW).

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Cyber-shot DSC-T100.

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Cyber-shot DSC-T100.

Sony Cyber ​​sending the camera. Shot a new series of T - Series version of "Good SC - T-100" resolution 8-megapixel zoom optical 5 times the screen width comfortable 3 inch the ISO up 3200 with focus face together. 8 people have to choose three colors including red, black and silver market in March this cost about 14,800 Baht

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Canon EOS 1D Mark III

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Canon EOS 1D Mark III.

Canon. The camera. Digital SLR. The latest version. EOS-1D Mark III. To celebrate the anniversary. 20 Years since. Canon. Start using the system. EOS. In production since then and the camera. EOS-1D Mark III. This model has become.A camera Digital SLR. The speed of shooting the world's fastest. Through the lens. EF 16-35 mm f/2.8 L II USM. And flash Speedlite 580EX II.

Canon EOS-1DMark III. This model can capture images at a resolution. 10 Million pixels, 10 frames per second, and if they wear. motor-driven. burst. It will help to take photos. Large JPEG. Up. 110 Image and photos. Raw Files. At 30 frames ever. The speed that this is a consequence from the new image processing chip. Dual. DIGIC III. That provides power to help us to process images in a way that other digital cameras. Impracticable In addition, the perforations is improved. CMOS. The sensor size. APS-H. Which allows the camera to have the most sensitivity.

In addition, it Canon EOS-1D Mark III. There is also a new feature called. microlens array. Restructuring and new pixels. Neuss has the lowest adjustable. ISO. From 100 to 3200 up to more. ISO. 50 to. 6400 Ever, as well as launching new accessory lenses. EF 16-35 mm f/2.8 L II USM. And flash Speedlite 580EX II. Also allows this digital camera for professional photographers. To the ease of use. Good performance. Reliable quality. It includes access to the system. EOS. Of Canon. Every generation.

Canon EOS-1D Mark III. This version also has the function of imaging modes. Live View. That meet the needs of photographers, all pros. The same camera. Point and Shoot. The image will be available directly from the LCD. This never happened before! On digital cameras. SLR. Causes the LCD 3-inch size allows clear visualization can zoom in to see. 5-10 times ever.

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Cyber-shot N2.

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Cyber-shot N2.

Satisfy your professional eye.Advances in digital compact cameras. Cyber-shot N2. Resolution of 10.1 megapixel one with the highest resolution compact camera than normal. Lens with Carl Zeiss Vario-Tessar, High Sensitivity (High Sensitivity) as high as ISO 1600, Real Imaging Processor Sony's DSC-N2 captures splendidly without a flash in places that are not allowed. Light will flash or emotional upset, and many other innovations. You shoot a professional photographer.

OverVview.

• Photography, recording, searching, or share photos in sizes up to 500 VGA images.
• Cyber-shot N2 10.1 megapixel resolution.
• Large LCD touch screen 3.0-inch.
• Cyber-shot N2 with Sue Ellen Carl Zeiss ®.
• Optical Zoom 3 times / 6 times digital zoom.
• Internal memory 25 MB.
• Weight 185 grams.
• Battery LITHIUM-ION.
  
  
  
  
  
  
  

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