{"id":14246,"date":"2023-04-04T10:33:10","date_gmt":"2023-04-04T05:03:10","guid":{"rendered":"https:\/\/fastbitlab.com\/?p=14246"},"modified":"2024-03-02T10:43:27","modified_gmt":"2024-03-02T05:13:27","slug":"stm32-ltdc-lcd-tft-lvgl-mcu3-lecture-10-converting-bmp-images-to-c-byte-array","status":"publish","type":"post","link":"https:\/\/fastbitlab.com\/blog\/stm32-ltdc-lcd-tft-lvgl-mcu3-lecture-10-converting-bmp-images-to-c-byte-array\/","title":{"rendered":"STM32-LTDC, LCD-TFT, LVGL (MCU3) Lecture 10| Converting bmp images to ‘C’ byte array"},"content":{"rendered":"
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Converting bmp images to ‘C’ byte array<\/span><\/strong><\/h1>\n
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In this article, we will understand how to store an image file in the form of a \u2018C\u2019 array in the application.<\/span><\/p>\n

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How to calculate how many bytes of memory does an image consume in the computer memory?<\/strong><\/span> <\/span><\/p>\n

The given resolution of the bitmap image is 480×270, and the pixel format of that image is ARGB8888, which means the Bit depth is 32 bits.<\/span><\/p>\n

The total memory consumed you can easily calculate by calculating the number of pixels of that image. You just have to multiply width x height, and then the memory consumed by each pixel that is bpp divided by 8, which gives you 4  bytes.<\/span><\/p>\n

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Figure 1. Calculation of how many bytes of memory does an image consume<\/span><\/figcaption><\/figure>\n

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Look at Figure 1, shows 506.25KB is the total memory consumed by this image in the computer memory or on the disk. So, the computer also says the same thing and the computer says the same.<\/span><\/p>\n

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You can see that, the computer says around 506 kilobytes of memory have been consumed by this image. But, this is in the case of the BMP image.<\/span><\/p>\n

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BMP(Bitmap) images<\/span><\/strong><\/span><\/h2>\n