Please do the following steps to bring in the Image in Article Master.
Step 1: SPRO->Logistics General->Material Master->Configuring the Material Master->Define Structure of Data Screens for each Screen Sequence
You have to add a new Sub screen for the required Screen Sequence.
Select the Basic Data and Select the sub screens. Insert the New Sub screen SAPLMGW_COMMON/ 0100 into the Sub screen area of your Z Screen Sequence.
Step 2: SPRO->Logistics General->Material Master->Configuring the Material Master->Assign Screen Sequences to User/Article type/Transaction/Industry Sector
Give your ZScreen Sequence to the Article Type.
Step 3: SPRO->Logistics General->Material Master->Retail-Specific Settings->Settings for Image Data Display->Edit Image Data Parameters
The system requires various control parameters in order to use image data in the respective applications. To maintain flexibility in the control of image data in the various application areas/transactions, the image data parameters are grouped together under object types. Configure the Object type.
Click on New Entries and Configure an Object Type.
Give the details like Application Server Path, File types Etc. Save the Picture as Article number.JPG in the mentioned Server path.
1) If you want the image to be diplayed to all users in server level, then you will have to store the image in the application server with file name as Aticlenumber.JPG. Give the filepath in the Edit Image Parameters.
2) If you want the image locally to your system the store the file in your local sap folder and give the repective file path to the Edit Image Parameters.
SAP GUI will look for URL Path w.r.t Article Image, so your path should start with http or ftp , only then it is able to fetch the image.