What is the difference between imread and imwrite ?

imread is used to read a picture file from the PC and stored into a matrice or variable 

imwrite is used to create an image picture 

The command 'iamread' reads graphic files from the system disk space, while 'imwrite' writes graphic image files onto the system disk space. The disk space accessed is in accordance with the specified file path.

• To read a graphics file format image use imread.

• To write a graphics file format image, use imwrite.

imread-load an image from a file

imwrite-save an image to an specific file

imread for loading a image in serveur but imwrite for save image in the file

Imread : Load an image 

Imwrite : Save your transformed image in a file on disk 

imread (file name): it reads the image to I, after infering format of the file from it's content.

imwrite(A, file name, fmt): writes the image A to the file specified in file name in the format specified by fmt.

The two are both used with image data.

Imread: it's used for reading an image data as an n-dimensional matrix depending on the format of the image being read.

imwrite: it's used for writing matrix data as image file that could also be view using image viewers

imread is a function that reads image data and imwrite writes image data.

function imread(filename, format) when executed will open the data of a file. it takes two input arguments. filename and format of the file mentioned in first argument(filename).

function imwrite() when executed will create an image file if proper arguments are provided. input arguments of this function vary. more info will be provided at mathworks website.

Hope it Helped

imread : image data o/P

imwrite : i/p data to image