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Image resolution is usually expressed by giving the dimensions of the image in pixels. The size of an image that is 640 pixels wide and 480 pixels tall would be expressed as 640x480. 640x480 is read as "six forty by four eighty".

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15y ago
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11y ago

The unit is pixel.

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Q: How is image resolution expressed?
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What is the measure of clarity of an image appears larger called?

The measure of clarity of an image appearing larger is typically referred to as resolution. Resolution is the level of detail that can be seen in an image, often expressed in terms of pixels or dots per inch (DPI). A higher resolution generally means a clearer and sharper image.


What happens to resolution when image is maginfied to 400x?

with your image resolution? Nothing happens it remains the same till you change it in Image Size dialog. Image > Image Size.. Magnification is for your convenience to see enlarged image nothing really happens to actual resolution of original image.


How do you decrease the size of JPEG pictures so that you can send them for example by lowering the resolution?

Go to Image > Image Size. If you want to keep current Width and Height of the image uncheck Resample image then type new reolution in Resolution field. When you want to resample image (to change Width and Height to match new resolution) check Resample Image and type desired resolution in Resolution field.


What determines the resolution of a digital images?

Resolution of image is used to determine the quality of image in digital camera.


How resolution and colour depth affect file size and image quality?

Changing the image resolution will affect the file size of the image and the quality of the image. Image resolution is measure in DPI, which is Dots Per Inch, this means that if you increase the resolution then the DPI will increase and the quality of the image will get better as a result as there are more pixels that make up the image, so the image will be more distinct and sharper. When the image resolution is increased the image has more pixels, this is the exact opposite to the compression techniques, this means that the file will get a lot bigger as the number of pixels increases. Decreasing the resolution, however, will make the image quality lower but will reduce the file size.


How do you work out the resolution of an image?

Right click the image, choose properties and go to the summary tab. You will find there the image width and height. Together they give the image resolution.


How do you Convert a high resolution image to a low resolution image?

go to http://www.shrinkpictures.com/ its a online image resizer and you can set the size and image quality. hope this helps


What is meant by pixel resolution and how does this affect the resolution of the image?

Resolution is defined as the smallest number of discernible detail in an image. Spatial resolution is the smallest discernible detail in an image and gray level resolution refers to the smallest discernible change is gray level.


What is a common way to change the resolution of an image?

Image Size


How do you change a low resolution picture into a high resolution picture on Adobe Photoshop Elements 9?

Image > Image Size


How can you check the resolution of a picture in Photoshop?

After opening the image you want to check the resolution of by going to "File", then "Open", click "Image", and then from the dropdown box, select "Image Size". In the new box that opens up, the width, and height boxes will tell you what resolution the image is.


What is the diffence between result of change both the size of a bit mapped image and its resolution?

When you change physical size of image in Width and Height fields its not necessary to change resolution. If you publish image to web you are inerested in Width and Height of image not in resolution, if you gonna print image then you must look in Resolution, most printers need 300 pixels per inch to print. Changing Resolution field will automaticaly change Width and Height of image in Photoshop (turn on Resample Image) and you will get best possible result with pixels you have.