If you have already added an image to an item inside SAP Business One and have noticed the quality of the image display is poor you can adjust this setting to improve it’s resolution.
1) Navigate to: Administration > System Initialization > General Settings
2) In the Display tab locate the dropdown field for “Image Processing”. To improve the image quality change the default option from “Partial” to “Full”. Click OK to update your settings.
The item image displaying on the Remarks tab in the Item Master Data screen should now be displaying in full resolution: