Digital Image Processing Question & Answers March 17, 2022 By WatElectronics This article lists 100 Digital Image Processing MCQs for engineering students. All the Digital Image Processing Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on their fundamentals of Digital Image Processing. Digital Image Processing in short known as DIP is a technique used by professionals for manipulating the original image and representing images in a precise way (clear/blurr). This process is applicable in various fields such as medical, industrial, photographic, morphing, etc. Professionals perform digital image processing using image processing softwares such as MATLAB, Photoshop, open CV, etc. Images in digital image processing are classified into 2 types namely Greyscale and RGB. Where Grey color of the image lies between white and black colors and each color-based RGB pixel holds either 16 or 24 bits of color values. The characteristics of image enhancement include deploying algorithms, further usage storage, and extracting hidden information. Digital image processing benefits in terms of multiple formats (X-Ray, image), assist in improving images for human interpretation and data can be retrieved easily. But lacks in terms of consuming more time, technology dependency, and high cost. 1). Digital image processing is a _____ type of processing? Hardware Software Logical All the above None Hint 2). How many phases do digital image processing comprises of? 2 3 4 5 None Hint 3). A basic image is represented in ___ dimensions? 1D 2D 3D 4D None Hint 4). A 2D array type of numeric values in image processing is called? Pixels Matrix Color All the above None Hint 5). A pixel holds ___ information? Intensity Color Size All the above None Hint 6). If the pixel value is ‘0’ then it represents ___ color? White Black Red Grey None Hint 7). If the pixel value is ‘1’ then it represents ___ color? White Black Red Yellow None Hint 8). Images in digital image processing are classified in to _____ number of types? 2 3 4 5 None Hint 9). Grey color of image lies between ____ colors? White and black White and red Black and red Black and green None Hint 10). Which of the following is the pixel value of greyscale image? 0 to 1 0 to 5 0 to 4 0 to 0.5 None Hint 11). RGB type image comprises of ____ colors? Red, Green, Blue Red, Grey, Black Red, Grey, Brown None of the above None Hint 12). Each color based pixel holds ___ bits of color values? 16 24 32 Both a and b None Hint 13). 16 or 24 bits color image values are classified in to ___ number of types? 2 3 4 5 None Hint 14). Which of the following are the basic functions of digital image processing? Image enhancement Noise addition Distortion All the above None Hint 15). Which of the following are the characteristics of image enhancement? Deploys algorithms Further usage storage Extracts hidden information All the above None Hint 16). Image processing in image enhancement extracts hidden information using ___? Sharpening Curves Folds All the above None Hint 17). Image enhancement technique benefit in terms of _____? Visualization Removes noise Clears image by debluring All the above None Hint 18).____ is called unwanted zones in image? Noise Music Sound All the above None Hint 19). Which of the following are the types of digital image processing noise? Salt and pepper noise Gaussian noise Speckle noise All the above None Hint 20). Which of the following are the functions of digital filters? Noise removing Image enhancement Edge detection All the above None Hint 21). Which of the following type of noise mimics multiple natural processes? Gaussian noise Speckle noise Salt and pepper noise All the above None Hint 22). Which of following type of digital image processing noise is similar to white and black pixels? Gaussian noise Speckle noise Salt and pepper noise All the above None Hint 23). A Gaussian noise is _____ type of noise in nature? Statistical Dynamical Mathematical Both a and b None Hint 24). Digital image processing is based on ____ application and technology? Feature extraction Multi-scale signal analysis Pattern recognition All the above None Hint 25). Which of the following are the techniques used in digital image processing? Linear filtering Neural networks Pixelation All the above None Hint Digital Image Processing Interview Questions and Answers 26). Anisotropic diffusion is also called _____? Peronamalik diffusion Space diffusion Scalar diffusion All the above None Hint 27). Peronamalik diffusion aims in minimizing ____ parameter without altering image data? Image noise Audio noise Video noise All the above None Hint 28). Peronamalik diffusion is has ____ transformation? Linear Space invariant Non-linear Both a and b None Hint 29). Which of the following are the advantages of digital image processing? Available in multiple formats (X-Ray, image) Assist in improving images for human interpretation Retrieved easily All the above None Hint 30). Which of the following are the disadvantages of digital image processing? Consumes more time Technology dependency High cost All the above None Hint 31). Which of the following are the components digital image processing? Sampling DSP Reconstruction All the above None Hint 32). Which of the following are the applications of digital image processing? Speech systems Digital audio and video applications Bio-medical All the above None Hint 33). Which of the following is the software used in digital image processing? Adobe Photoshop Mathlab Open CV All the above None Hint 34). A Hidden Markive Model in Digital image process is a _____ Markov model? Mathematical Statistical Science All the above None Hint 35). Hidden Markive Model is known for ______ applications? Thermodynamics Information theory Speech tagging All the above None Hint 36). Which of the following are the real time applications of Hidden Markive Model? Drawing balls from hidden urns Weather guessing game Puzzles Both a and b None Hint 37).Image editing method in digital image processing processes _____ types of images? Digital photographs Photo-chemical photographs Photo illustrations All the above None Hint 38). A traditional analog type image editing is also called _____? Photo retouching Photo Updating Photo deletion All the above None Hint 39). Which of the following are the groups of graphics software programs? Vector graphic editor Raster graphic editor 3D modelers All the above None Hint 40). Image is stored in ____ format? JPEG .exe .doc .ppt None Hint 41). Abbreviate JPEG? Joint Photographic Expert Group Joint Plate Expert Group Joint Photographic Execute Group Joint Photographic Expert Game None Hint 42). Which of the following tools are required for image processing? Marquee tool Lasso tool Magic wand tool All the above None Hint 43). Which of the following digital image processing tool used for selecting rectangular shaped regions of image? Maequee Lasso Magic wand Both a and b None Hint 44). Which of the following digital image processing tool used for selecting freehand shaped regions of image? Maequee Lasso Magic wand Both a and b None Hint 45). Which of the following digital image processing tool used for selecting color proximity of image? Maequee Lasso Magic wand Both a and b None Hint 46). Which of the following are lasso tool applications? Photoshop Paint tool SAI GIMP All the above None Hint 47). Which of the following digital image processing technology deals with satellite communication? Machine vision Remote sensing Medical field Image sharping None Hint 48). Which of the following digital image processing technology deals with CR, UV imaging? Machine vision Remote sensing Medical field Image sharping None Hint 49). Which of the following digital image processing technology deals with zooming and blurring image? Machine vision Remote sensing Medical field Image sharping None Hint 50). Which of the following are the characteristics of Digital Image processing? Clear images Uses image software Minimizes DIP complexity All the above None Hint Digital Image Processing Quiz Questions and Answers. 51). Which of the following type of digital image processing performs image processing using 0 or 1 digit? Binary images Color images Multispectral images Gray-scale images None Hint 52). A gray scale image is also called _____? Monochrome images One-color images Bi-color images Both a and b None Hint 53). How many bits/pixel does a grey scale image comprises of with 256 different gray level? 8 4 12 16 None Hint 54). How many bits/pixel in grey scale are used in medical imaging? 12 16 20 Both a or b None Hint 55). Color images are developed using ____ number band monochrome image data? 2 3 4 5 None Hint 56). A color image is also called ____? RGB image Grey scale image Monochrome images Both b and c None Hint 57). A RGB images comprises of _____ number of bits/pixels for 8-bit monochrome? 24 16 12 8 None Hint 58). Which of the following type of image in image processing comprises of information outside the normal human perceptual range? Multispectral images Color images Binary images Gray-scale images None Hint 59). Which of the following are multispectral images? UV Infrared X-ray All the above None Hint 60). Which of the following are the examples of image transformation? Component analysis Fourier transform Spatial Filter All the above None Hint 61). _____ digital image processing technique is caused due to displaying of bitmap? Pixelation Linear filtering Anisotropic diffusion Wavelets None Hint 62). In wavelet DIP technique an amplitude initiates at ____? 0 1 Intermediate value Null None Hint 63). Abbreviate SOM in DIP technology? Self-Organizing map Self-Ongoing map Side-ongoing map Both b and c None Hint 64). Which of the following are the challenges in template matching task of DIP? Occlusion Detection of non-rigid transformation Background clutter All the above None Hint 65). ____ is referred as unwanted part in signal? Noise Music Tunes All the above None Hint 66). Noise are classified in to ____ types? 6 7 8 9 None Hint 67). Which of the following are additive noise? White noise Black noise Gaussian noise All the above None Hint 68). Which of the following is the example of white noise? Additive Pink Cauchy Power-law None Hint 69). Which of the following are the characteristics of additive white Gaussian noise? Intrinsic Uniform power Zero average time domain All the above None Hint 70). Which of the following are the practical applications of white noise? Music Computing Tinnitus treatment All the above None Hint 71). Which of the following noise type converts continuous values to discrete values? Multiplicative noise Quantization error Poison noise Shot noise None Hint Read more about Quantization (Energy Band). 72). A software that alters virtual image is called ___? Digital Image Processing Design Image Processing Delta Image Processing Analog Image Processing None Hint 73). Identify the enhancement processes of image quality? Analog Digital Both a and b None of the above None Hint 74). Which of the following is the reason behind picture formation in human eye and camera? Static focal length Dynamic focal length Zero focal length None of the above None Hint 75). Which of the following are the colors of image processing? Half pseudo color Multicolor Full Pseudo color Both b and c None Hint Digital Image Processing MCQs for Exams 76). Which of the following is the characteristics of chromaticity? Hue Saturation Brightness Both a and b None Hint 77). In aliasing effect, on lowering high frequency image component ____ the quality of image? Blurs Clears Both a and b None of the above None Hint 78).Which of the following is the first step in image processing? Segmentation Image acquisition Image restoration Image enhancement None Hint 79). Identify the speediest image processing approach? Analog Digital Photographic Optical None Hint 80). Identify the method after compression? Wavelets Description Morphological processing Segmentation None Hint 81). Which of the following is the second step in digital image processing? Image acquisition Image enhancement Compressing Image restoration None Hint 82). Which of the following is the third step in digital image processing? Image acquisition Image enhancement Compressing Image restoration None Hint 83). Which of the following is the fourth step in digital image processing? Image acquisition Image enhancement Compressing Color image processing None Hint 84). Which of the following is the fifth step in digital image processing? Image acquisition Wavelets Compressing Color image processing None Hint 85). Which of the following is the sixth step in digital image processing? Image acquisition Wavelets Compressing Color image processing None Hint 86). Which of the following is the seventh step in digital image processing? Image acquisition Wavelets Morphological processing Color image processing None Hint 87). Which of the following is the eight step in digital image processing? Image acquisition Segmentation Morphological processing Color image processing None Hint 88). Which of the following is the ninth step in digital image processing? Description Segmentation Morphological processing Color image processing None Hint 89). Which of the following is the tenth step in digital image processing? Description Segmentation Recognition of object Color image processing None Hint 90). Identify the tool for zooming, rotating, etc? Sampling Filtering Interpolation Both a and b None Hint 91). Which of the following is the image subtraction tool? MRI scan Mask mode radiography CT scan Both b and c None Hint 92). Abbreviate ROI in DSP? Region of Interest Reason of Interest Rapid of Interest None of the above None Hint 93). ____ is also called ROI? Dilation Masking Imaging Both a and b None Hint 94). ____ type of filter response depends on pixel ranking? Linear filter Non linear Geometric Both a and b None Hint 95). _____ are the reasons behind image enhancing? Linear Logarithmic Inverse law All the above None Hint 96). Identify the primary goal of image sharping? Clearly represents the image Sharpens the image brightness Decreases the image brightness All the above None Hint 97). ____ operation is performed on pixel while image sharping? Integration Differentiation Addition Average None Hint 98). Which of the following factor enhances image differentiation? Pixel density Edges Contours All the above None Hint 99). Identify the reason behind un-sharp masking? Masking of image Blurring of image Subtraction of image All the above None Hint 100). Which of the following filter is a average filter? BPF LPF HPF All the above None Hint Read more about Low Pass Filter Please fill in the comment box below. Time's up
