Sunday, April 11, 2010

Image Processing

Hey folks!

After a busy week I am back with a very new thing about photography, its image processing. Yes, many people does not know any thing about image processing, few did not even heard of it, and few have asked me, who have just heard that some term called image processing do exist in the amazing field of photography, so I thought to write about it.

Basically image processing is a very simple process, its not at all tough as it sounds, "IMAGE PROCESSING" or post processing or PP or image post processing, lots of names, mostly known as 'PP', for me its image processing, anyway,so its a process which is done on a raw photograph or a raw image, to make corrections, to remove red-eye effects, to add different effects, etc., in short to enhance the image, to make it look more good or more perfect by using some computer application like Adobe Phototshop or Adobe Lightroom, etc., thats the basic concept of image processing.

Lets get to know more about image processing. Firstly the correction of the image is done, as in color, contrast, brightness, hue & saturation of colors, shoadows & highlights, removing red-eye effect if the image includes any charaters, etc. are corrected according to the photographer, its how the photographer wants image/photograph to come out. Secondly I work on the tint of the whole image, if its required in a different mood or color scheme effect or any other things. Mostly used tints are sepia, black n white or grayscale, red, green, blue, purple, etc. Tint adds a different mood, effect to an image, it is done only if its required, or only if the photo demands to appear more good in the perticular tint, or else to just make a difference, it totally depends on the photographer. Thirdly I work on some minute things manually like if some elements in the photo needs to be more dark, then I use burn tool, if some areas needs to be highlighted more, I use dodge tool, also some other tools for sharpening/blurring areas. Finally, I cpoyright my photograph by adding a small text line in some corner of the photograph mentioning my name and year of its creation.


Now the above image is an example of image processing, for you to know what difference happens after this image processed. It includes two images, the upper one is the raw image or the image before image processing and the lower one is after the image is processed. As you can gradually notice the difference, I have firstly worked on its shadows, which brings a major difference, a then a bit on its colors, and then a bit on the sharpness of the bench and its edges, and VOLLA!! its done!.

Well this is how Image processing works for me, most important thing is, you, the photographer inside you must be satisfied. Alright then, let me know your reviews about 'Image Processing'.

Thanks!

Tanmay.

Thursday, April 1, 2010

What is Macro photography?

Hi!

This article is about Macro Photography for laymen.

Macro photography is a type pf photography which has very close shoot of smaller the subject or the abject being photographed. Technically, the image projected on the film plane, is close to the actual/same size of the subject. The camera forces its lens to optimize to focus sharply on areas which are very close/near to it.

There are different/indivisual lenses called as Macro lenses specially for such type of macro photography which has a ratio as, The size of the image on the film:The size of the object being photographed, mostly the ratio is 1:1 or 1:2, and can achieve upto 1:10. The ratio varies according to the focal length of the lense/camera, for example the ratios 1:1 or 1:2 are for cameras/lenses having focal length about 35mm. mm (millimeter) is the unit in which the camera's/lens's focal length is measured.


The above photograph is also a macro photograph of a thorn of cactus plant. As you can see in this photograph, I have focused on the thorn due to which its very clear and sharply visible, even the cobwebs around the thorn are clearly captured by the camera lens because they are close to the camera, very close, and the area which is not closer to lens is blurred or not clear, unfocused.


This photograph or any other macro photographs are very good examples of Depth Of Field (DOF), particularly relates to film and photography.

So this is how macro photography works, I hope it helped you. Please post your reviews about this.

Thanks!

Tanmay.