Minggu 9: Basic Image Editing

Assalamualaikum..Alhamdulillah..still given opportunities to share something today..

Sharing sessions today is more about basic image editing. It sounds interesting because I like editing!!! :)

Let's look more details about basic image editing....

Adobe Photoshop is an example of software that we can used to make editing on image.

History about Adobe Photoshop

Adobe Photoshop is a raster graphics editor developed and published by Adobe Systems for Windows and OS X. Photoshop was created in 1988 by Thomas and John Knoll. 

What can we do with photoshop?

-Selection

-Layers

-Image size alteration

-Noise reduction

-Removal of unwanted elements

-Selective color change

-Cropping an image

-Selecting and merging of images

-Image orientation

-Sharpening and softening images

-Slicing of images

-Change color images

-Change color depth

-Contrast change and brightening

-Color adjustments

-Stamp Clone Tool

-3D/ HD image editing

-Illustrator image editing

How to saving photoshop essential file formats?

-PSD

-JPEG:most popular, supports 24 bit colour, even the cheapest digital cameras can capture images as JPEG files

-GIF: stands for Graphics Interchange Format, format of choice for web graphics, allows web designers to create simple animations.

-PNG: supports up to 48 bit color

-TIFF:files can be very large, for commerial printing.

-EPS: another print industry standard format

-PDF

Image Selection and Editing

Image

-can be two dimensional and three dimensional

Image Size

-Encompasses the processes of altering images, whether they are digital photographs, traditional photochemical photographs, or illustrations.

-Traditional analog image editing is known as photo retouching, using tools such as an airbrush to modify photographs, or editing illustrations with any traditional art medium.

-Graphic software programs which can be broadly grouped into vector graphics editors, raster graphics editors and 3D modelers, are the primary tools with which a user may manipulate, enhance and transform images,

-Many image editing programs are also used to render or create computer art from scratch.

Image Resolution

- Image size refers to the resolution of the image

-Resolution is sometimes identified by the width and height of the image as well as the total number of pixels in the image.

-For example, an image that is 2048 pixels wide and 1536 pixels high (2048 x 1536) contains (multiply) 3 145728 pixels(or 3.1 megapixels).

-As the megapixels in the pickup device in your camera increase so does the possible maximum size image you can produce

Compress or uncompressed

-In addition to image size, the quality of the image can also be manipulated.

-An uncompressed image is saved in a file format that does't compress the pixels in the image at all.

-Formats such as BMP or TIF files do not compress the image. If we want to reduce the "file size", we can choose to store our image as a JPG file and choose the amount of compression that we want before saving the image.

Pixel resolution

-Resolution is the capability of the sensor to observe or measure the smallest object clearly with distinct boundaries.

-there is a difference between the resolution and a pixel.

-A pixel is actually a unit of the digital images.

-Resolution depends upon the size of the pixel. With a given lens setting the smaller the size of the pixel. The higher the resolutions will be and the clearer the object in the mage will be.